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(July 2016) ()

This list contains selected positive numbers in increasing order, including counts of things, dimensionless quantities and probabilities. Each number is given a name in the short scale, which is used in English-speaking countries, as well as a name in the long scale, which is used in some of the countries that do not have English as their national language.

Chimpanzee probably not typing Hamlet
  • Mathematics – random selections: Approximately 10−183,800 is a rough first estimate of the probability that a typing "monkey", or an English-illiterate typing robot, when placed in front of a typewriter, will type out William Shakespeare's play Hamlet as its first set of inputs, on the precondition it typed the needed number of characters. However, demanding correct punctuation, capitalization, and spacing, the probability falls to around 10−360,783.
  • Computing: 2.2×10−78913 is approximately equal to the smallest positive non-zero value that can be represented by an octuple-precision IEEE floating-point value.
1×10−6176 is equal to the smallest positive non-zero value that can be represented by a quadruple-precision IEEE decimal floating-point value.
6.5×10−4966 is approximately equal to the smallest positive non-zero value that can be represented by a quadruple-precision IEEE floating-point value.
3.6×10−4951 is approximately equal to the smallest positive non-zero value that can be represented by an 80-bit x86 double-extended IEEE floating-point value.
1×10−398 is equal to the smallest positive non-zero value that can be represented by a double-precision IEEE decimal floating-point value.
4.9×10−324 is approximately equal to the smallest positive non-zero value that can be represented by a double-precision IEEE floating-point value.
1.5×10−157 is approximately equal to the probability that in a randomly selected group of 365 people, all of them will have different birthdays.
1×10−101 is equal to the smallest positive non-zero value that can be represented by a single-precision IEEE decimal floating-point value.
1/52! chance of a specific shuffle
  • Mathematics: The chances of shuffling a standard 52-card deck in any specific order is around 1.24×10−68 (or exactly152!)
  • Computing: The number 1.4×10−45 is approximately equal to the smallest positive non-zero value that can be represented by a single-precision IEEE floating-point value.

(0.000000000000000000000000000001; 1000−10; short scale: one nonillionth; long scale: one quintillionth)

  • Mathematics: The probability in a game of bridge of all four players getting a complete suit each is approximately4.47×10−28.

(0.000000000000000000000000001; 1000−9; short scale: one octillionth; long scale: one quadrilliardth)

(0.000000000000000000000001; 1000−8; short scale: one septillionth; long scale: one quadrillionth)

ISO: yocto- (y)

(0.000000000000000000001; 1000−7; short scale: one sextillionth; long scale: one trilliardth)

ISO: zepto- (z)

  • Mathematics: The probability of matching 20 numbers for 20 in a game of keno is approximately 2.83 × 10−19.

(0.000000000000000001; 1000−6; short scale: one quintillionth; long scale: one trillionth)

ISO: atto- (a)

  • Mathematics: The probability of rolling snake eyes 10 times in a row on a pair of fair dice is about2.74×10−16.

(0.000000000000001; 1000−5; short scale: one quadrillionth; long scale: one billiardth)

ISO: femto- (f)

  • Mathematics: The Ramanujan constant, e π 163 = 262 537 412 640 768 743.999 999 999 999 25 , {\displaystyle e^{\pi {\sqrt {163}}}=262\,537\,412\,640\,768\,743.999\,999\,999\,999\,25\ldots ,} is an almost integer, differing from the nearest integer by approximately7.5×10−13.

(0.000000000001; 1000−4; short scale: one trillionth; long scale: one billionth)

ISO: pico- (p)

(0.000000001; 1000−3; short scale: one billionth; long scale: one milliardth)

ISO: nano- (n)

  • Mathematics – Lottery: The odds of winning the Grand Prize (matching all 6 numbers) in the US Powerball lottery, with a single ticket, under the rules as of October 2015[update], are 292,201,338 to 1 against, for a probability of3.422×10−9 (0.0000003422%).
  • Mathematics – Lottery: The odds of winning the Grand Prize (matching all 6 numbers) in the Australian Powerball lottery, with a single ticket, under the rules as of April 2018[update], are 134,490,400 to 1 against, for a probability of7.435×10−9 (0.0000007435%).
  • Mathematics – Lottery: The odds of winning the Jackpot (matching the 6 main numbers) in the UK National Lottery, with a single ticket, under the rules as of August 2009[update], are 13,983,815 to 1 against, for a probability of7.151×10−8 (0.000007151%).

(0.000001; 1000−2; long and short scales: one millionth)

ISO: micro- (μ)

Poker hands
Poker hands
Hand Chance
1. Royal flush 0.00015%
2. Straight flush 0.0014%
3. Four of a kind 0.024%
4. Full house 0.14%
5. Flush 0.19%
6. Straight 0.59%
7. Three of a kind 2.1%
8. Two pairs 4.8%
9. One pair 42%
10. No pair 50%
  • Mathematics – Poker: The odds of being dealt a royal flush in poker are 649,739 to 1 against, for a probability of 1.5×10−6 (0.00015%).
  • Mathematics – Poker: The odds of being dealt a straight flush (other than a royal flush) in poker are 72,192 to 1 against, for a probability of 1.4×10−5 (0.0014%).
  • Mathematics – Poker: The odds of being dealt a four of a kind in poker are 4,164 to 1 against, for a probability of 2.4×10−4 (0.024%).

(0.001; 1000−1; one thousandth)

ISO: milli- (m)

  • Mathematics – Poker: The odds of being dealt a full house in poker are 693 to 1 against, for a probability of 1.4 × 10−3 (0.14%).
  • Mathematics – Poker: The odds of being dealt a flush in poker are 507.8 to 1 against, for a probability of 1.9 × 10−3 (0.19%).
  • Mathematics – Poker: The odds of being dealt a straight in poker are 253.8 to 1 against, for a probability of 4 × 10−3 (0.39%).
  • Physics: α =0.007297352570(5), the fine-structure constant.

(0.01; one hundredth)

ISO: centi- (c)

  • Mathematics – Lottery: The odds of winning any prize in the UK National Lottery, with a single ticket, under the rules as of 2003, are 54 to 1 against, for a probability of about 0.018 (1.8%).
  • Mathematics – Poker: The odds of being dealt a three of a kind in poker are 46 to 1 against, for a probability of 0.021 (2.1%).
  • Mathematics – Lottery: The odds of winning any prize in the Powerball, with a single ticket, under the rules as of 2015, are 24.87 to 1 against, for a probability of 0.0402 (4.02%).
  • Mathematics – Poker: The odds of being dealt two pair in poker are 21 to 1 against, for a probability of 0.048 (4.8%).

(0.1; one tenth)

ISO: deci- (d)

  • Legal history: 10% was widespread as the tax raised for income or produce in the ancient and medieval period; see tithe.
  • Mathematics: ii =eπ/2 ≈ 0.207879576.
  • Mathematics – Poker: The odds of being dealt only one pair in poker are about 5 to 2 against (2.37 to 1), for a probability of 0.42 (42%).
  • Mathematics – Poker: The odds of being dealt no pair in poker are nearly 1 to 2, for a probability of about 0.5 (50%).

(1; one)

Ten digits on two human hands

(10; ten)

ISO: deca- (da)

128 ASCII characters

(100; hundred)

ISO: hecto- (h)

Roman legion (precise size varies)

(1000; thousand)

ISO: kilo- (k)

(10000; ten thousand or a myriad)

  • Biology: Each neuron in the human brain is estimated to connect to 10,000 others.
  • Demography: The population of Tuvalu was 10,544 in 2007.
  • Lexicography: 14,500 unique English words occur in the King James Version of the Bible.
  • Zoology: There are approximately 17,500 distinct butterfly species known.
  • Language: There are 20,000–40,000 distinct Chinese characters in more than occasional use.
  • Biology: Each human being is estimated to have 20,000 coding genes.
  • Grammar: Each regular verb in Cherokee can have 21,262 inflected forms.
  • War: 22,717 Union and Confederate soldiers were killed, wounded, or missing in the Battle of Antietam, the bloodiest single day of battle in American history.
  • Computing – Unicode: 42,720 characters are encoded in CJK Unified Ideographs Extension B, the most of any single public-use Unicode block as of Unicode 14.0 (2021).
  • Aviation: As of July 2021[update], 44,000+ airframes have been built of the Cessna 172, the most-produced aircraft in history.
  • Computing - Fonts: The maximum possible number of glyphs in a TrueType or OpenType font is 65,535 (216-1), the largest number representable by the 16-bit unsigned integer used to record the total number of glyphs in the font.
  • Computing – Unicode: A plane contains 65,536 (216) code points; this is also the maximum size of a Unicode block, and the total number of code points available in the obsolete UCS-2 encoding.
  • Mathematics: 65,537 is the largest known Fermat prime.
  • Memory: As of 2015[update], the largest number of decimal places of π that have been recited from memory is 70,030.
100,000–150,000 strands of human hair

(100000; one hundred thousand or a lakh).

  • Demography: The population of Saint Vincent and the Grenadines was 100,982 in 2009.
  • Biology – Strands of hair on a head: The average human head has about 100,000–150,000 strands of hair.
  • Literature: approximately 100,000 verses (shlokas) in the Mahabharata.
  • Computing – Unicode: 144,762 characters (including control characters) encoded in Unicode as of version 14.0 (2021).
  • Language: 267,000 words in James Joyce's Ulysses.
  • Computing – Unicode: 288,512 code points assigned to a Unicode block as of Unicode 14.0.
  • Mathematics: 294,000 – The approximate number of entries in The On-Line Encyclopedia of Integer Sequences as of November 2017[update].
  • Genocide: 300,000 people killed in the Rape of Nanking.
  • Language – English words: The New Oxford Dictionary of English contains about 360,000 definitions for English words.
  • Biology – Plants: There are approximately 390,000 distinct plant species known, of which approximately 20% (or 78,000) are in risk of extinction.
  • Biology – Flowers: There are approximately 400,000 distinct flower species on Earth.
  • Literature: 564,000 words in War and Peace by Leo Tolstoy.
  • Literature: 930,000 words in the King James Version of the Bible.
  • Mathematics: There are 933,120 possible combinations on the Pyraminx.
  • Computing – Unicode: There are 974,530 publicly-assignable code points (i.e., not surrogates, private-use code points, or noncharacters) in Unicode.
3,674,160 Pocket Cube positions

(1000000; 10002; long and short scales: one million)

ISO: mega- (M)

  • Demography: The population of Riga, Latvia was 1,003,949 in 2004, according to Eurostat.
  • Computing – UTF-8: There are 1,112,064 (220 + 216 - 211) valid UTF-8 sequences (excluding overlong sequences and sequences corresponding to code points used for UTF-16 surrogates or code points beyond U+10FFFF).
  • Computing – UTF-16/Unicode: There are 1,114,112 (220 + 216) distinct values encodable in UTF-16, and, thus (as Unicode is currently limited to the UTF-16 code space), 1,114,112 valid code points in Unicode (1,112,064 scalar values and 2,048 surrogates).
  • Ludology – Number of games: Approximately 1,181,019 video games have been created as of 2019.
  • Biology – Species: The World Resources Institute claims that approximately 1.4 million species have been named, out of an unknown number of total species (estimates range between 2 and 100 million species). Some scientists give 8.8 million species as an exact figure.
  • Genocide: Approximately 800,000–1,500,000 (1.5 million) Armenians were killed in the Armenian genocide.
  • Linguistics: The number of possible conjugations for each verb in the Archi language is 1,502,839.
  • Info: The freedb database of CD track listings has around 1,750,000 entries as of June 2005[update].
  • War: 1,857,619 casualties at the Battle of Stalingrad.
  • Computing – UTF-8: 2,164,864 (221 + 216 + 211 + 27) possible one- to four-byte UTF-8 sequences, if the restrictions on overlong sequences, surrogate code points, and code points beyond U+10FFFF are not adhered to. (Note that not all of these correspond to unique code points.)
  • Mathematics – Playing cards: There are 2,598,960 different 5-card poker hands that can be dealt from a standard 52-card deck.
  • Mathematics: There are 3,149,280 possible positions for the Skewb.
  • Mathematics – Rubik's Cube: 3,674,160 is the number of combinations for the Pocket Cube (2×2×2 Rubik's Cube).
  • Info – Web sites: As of June 24, 2022, the English Wikipedia contains approximately 6.5 million articles in the English language.
  • Geography/Computing – Geographic places: The NIMA GEOnet Names Server contains approximately 3.88 million named geographic features outside the United States, with 5.34 million names. The USGS Geographic Names Information System claims to have almost 2 million physical and cultural geographic features within the United States.
  • Computing - Supercomputer hardware: 4,981,760 processor cores in the final configuration of the Tianhe-2 supercomputer.
  • Genocide: Approximately 5,100,000–6,200,000 Jews were killed in the Holocaust.
12,988,816 domino tilings of a checkerboard

(10000000; a crore; long and short scales: ten million)

  • Demography: The population of Haiti was 10,085,214 in 2010.
  • Literature: 11,206,310 words in Devta by Mohiuddin Nawab, the longest continuously published story known in the history of literature.
  • Genocide: An estimated 12 million persons shipped from Africa to the New World in the Atlantic slave trade.
  • Mathematics: 12,988,816 is the number of domino tilings of an 8×8 checkerboard.
  • War: 15 to 22 million casualties estimated as a result of World War I.
  • Genocide/Famine: 15 million is an estimated lower bound for the death toll of the 1959–1961 Great Chinese Famine, the deadliest known famine in human history.
  • Computing: 16,777,216 different colors can be generated using the hex code system in HTML (note that the trichromatic color vision of the human eye can only distinguish between about an estimated 1,000,000 different colors).
  • Science Fiction: In Isaac Asimov's Galactic Empire, in 22,500 CE, there are 25,000,000 different inhabited planets in the Galactic Empire, all inhabited by humans in Asimov's "human galaxy" scenario.
  • Genocide/Famine: 55 million is an estimated upper bound for the death toll of the Great Chinese Famine.
  • Literature: Wikipedia contains a total of around 58 million articles in 327 languages as of June 2022.
  • War: 70 to 85 million casualties estimated as a result of World War II.
  • Mathematics: 73,939,133 is the largest right-truncatable prime.

(100000000; long and short scales: one hundred million)

(1000000000; 10003; short scale: one billion; long scale: one thousand million, or one milliard)

ISO: giga- (G)

  • Demography: The population of Africa reached 1,000,000,000 sometime in 2009.
  • Demographics – India: 1,381,000,000 – approximate population of India in 2020.
  • Transportation – Cars: As of 2018[update], there are approximately 1.4 billion cars in the world, corresponding to around 18% of the human population.
  • Demographics – China: 1,439,000,000 – approximate population of the People's Republic of China in 2020.
  • Internet – Google: There are more than 1,500,000,000 active Gmail users globally.
  • Internet: Approximately 1,500,000,000 active users were on Facebook as of October 2015.
  • Computing – Computational limit of a 32-bit CPU: 2,147,483,647 is equal to 231−1, and as such is the largest number which can fit into a signed (two's complement) 32-bit integer on a computer.
  • Computing – UTF-8: 2,147,483,648 (231) possible code points (U+0000 - U+7FFFFFFF) in the pre-2003 version of UTF-8 (including five- and six-byte sequences), before the UTF-8 code space was limited to the much smaller set of values encodable in UTF-16.
  • Biology – base pairs in the genome: approximately 3.3×109 base pairs in the human genome.
  • Linguistics: 3,400,000,000 – the total number of speakers of Indo-European languages, of which 2,400,000,000 are native speakers; the other 1,000,000,000 speak Indo-European languages as a second language.
  • Mathematics and computing: 4,294,967,295 (232 − 1), the product of the five known Fermat primes and the maximum value for a 32-bit unsigned integer in computing.
  • Computing – IPv4: 4,294,967,296 (232) possible unique IP addresses.
  • Computing: 4,294,967,296 – the number of bytes in 4 gibibytes; in computation, 32-bit computers can directly access 232 units (bytes) of address space, which leads directly to the 4-gigabyte limit on main memory.
  • Mathematics: 4,294,967,297 is a Fermat number and semiprime. It is the smallest number of the form 2 2 n + 1 {\displaystyle 2^{2^{n}}+1} which is not a prime number.
  • Demographics – world population: 7,953,000,000 – Estimated population for the world as of June 2022.

(10000000000; short scale: ten billion; long scale: ten thousand million, or ten milliard)

  • Biology – bacteria in the human body: There are roughly 1010 bacteria in the human mouth.
  • Computing – web pages: approximately 5.6×1010 web pages indexed by Google as of 2010.

(100000000000; short scale: one hundred billion; long scale: hundred thousand million, or hundred milliard)

1012 stars in the Andromeda Galaxy

(1000000000000; 10004; short scale: one trillion; long scale: one billion)

ISO: tera- (T)

  • Astronomy: Andromeda Galaxy, which is part of the same Local Group as our galaxy, contains about 1012 stars.
  • Biology – Bacteria on the human body: The surface of the human body houses roughly 1012 bacteria.
  • Astronomy – Galaxies: A 2016 estimate says there are 2 × 1012 galaxies in the observable universe.
  • Biology – Blood cells in the human body: The average human body has 2.5 × 1012 red blood cells.
  • Biology: An estimate says there were 3.04 × 1012 trees on Earth in 2015.
  • Marine biology: 3,500,000,000,000 (3.5 × 1012) – estimated population of fish in the ocean.[citation needed]
1014 stars in IC 1101
  • Mathematics: 7,625,597,484,987 – a number that often appears when dealing with powers of 3. It can be expressed as 19683 3 {\displaystyle 19683^{3}} , 27 9 {\displaystyle 27^{9}} , 3 27 {\displaystyle 3^{27}} , 3 3 3 {\displaystyle 3^{3^{3}}} and 33 or when using Knuth's up-arrow notation it can be expressed as 3 ↑↑ 3 {\displaystyle 3\uparrow \uparrow 3} and 3 ↑↑↑ 2 {\displaystyle 3\uparrow \uparrow \uparrow 2} .
  • Mathematics: 1013 – The approximate number of known non-trivial zeros of the Riemann zeta function as of 2004[update].
  • Mathematics – Known digits of π: As of March 2019[update], the number of known digits of π is 31,415,926,535,897 (the integer part of π×1013).
  • Biology – approximately 1014 synapses in the human brain.
  • Astronomy: IC 1101, a supergiant elliptical galaxy located inside the Abell 2029 cluster, is estimated to have approximately 100 trillion (1014) stars inside the galaxy, making it the largest known galaxy in the universe.
  • Biology – Cells in the human body: The human body consists of roughly 1014 cells, of which only 1013 are human. The remaining 90% non-human cells (though much smaller and constituting much less mass) are bacteria, which mostly reside in the gastrointestinal tract, although the skin is also covered in bacteria.
  • Cryptography: 150,738,274,937,250 configurations of the plug-board of the Enigma machine used by the Germans in WW2 to encode and decode messages by cipher.
  • Computing – MAC-48: 281,474,976,710,656 (248) possible unique physical addresses.
  • Mathematics: 953,467,954,114,363 is the largest known Motzkin prime.
1015 to 1016 ants on Earth

(1000000000000000; 10005; short scale: one quadrillion; long scale: one thousand billion, or one billiard)

ISO: peta- (P)

  • Biology – Insects: 1,000,000,000,000,000 to 10,000,000,000,000,000 (1015 to 1016) – The estimated total number of ants on Earth alive at any one time (their biomass is approximately equal to the total biomass of the human species).
  • Computing: 9,007,199,254,740,992 (253) – number until which all integer values can exactly be represented in IEEE double precision floating-point format.
  • Mathematics: 48,988,659,276,962,496 is the fifth taxicab number.
  • Science Fiction: In Isaac Asimov's Galactic Empire, in what we call 22,500 CE there are 25,000,000 different inhabited planets in the Galactic Empire, all inhabited by humans in Asimov's "human galaxy" scenario, each with an average population of 2,000,000,000, thus yielding a total Galactic Empire population of approximately 50,000,000,000,000,000.
  • Science Fiction: There are approximately 1017 sentient beings in the Star Wars galaxy.
  • Cryptography: There are 256 = 72,057,594,037,927,936 different possible keys in the obsolete 56-bit DES symmetric cipher.
≈4.33×1019 Rubik's Cube positions

(1000000000000000000; 10006; short scale: one quintillion; long scale: one trillion)

ISO: exa- (E)

  • Mathematics: Goldbach's conjecture has been verified for all n ≤ 4×1018 by a project which computed all prime numbers up to that limit.
  • Computing – Manufacturing: An estimated 6×1018 transistors were produced worldwide in 2008.
  • Computing – Computational limit of a 64-bit CPU: 9,223,372,036,854,775,807 (about 9.22×1018) is equal to 263−1, and as such is the largest number which can fit into a signed (two's complement) 64-bit integer on a computer.
  • Mathematics – NCAA Basketball Tournament: There are 9,223,372,036,854,775,808 (263) possible ways to enter the bracket.
  • Mathematics – Bases: 9,439,829,801,208,141,318 (≈9.44×1018) is the 10th and (by conjecture) largest number with more than one digit that can be written from base 2 to base 18 using only the digits 0 to 9, meaning the digits for 10 to 17 are not needed in bases above 10.
  • Biology – Insects: It has been estimated that the insect population of the Earth is about 1019.
  • Mathematics – Answer to the wheat and chessboard problem: When doubling the grains of wheat on each successive square of a chessboard, beginning with one grain of wheat on the first square, the final number of grains of wheat on all 64 squares of the chessboard when added up is 264−1 = 18,446,744,073,709,551,615 (≈1.84×1019).
  • Mathematics – Legends: The Tower of Brahma legend tells about a Hindu temple containing a large room with three posts, on one of which are 64 golden discs, and the object of the mathematical game is for the Brahmins in this temple to move all of the discs to another pole so that they are in the same order, never placing a larger disc above a smaller disc, moving only one at a time. Using the simplest algorithm for moving the disks, it would take 264−1 = 18,446,744,073,709,551,615 (≈1.84×1019) turns to complete the task (the same number as the wheat and chessboard problem above).
  • Computing – IPv6: 18,446,744,073,709,551,616 (264; ≈1.84×1019) possible unique /64 subnetworks.
  • Mathematics – Rubik's Cube: There are 43,252,003,274,489,856,000 (≈4.33×1019) different positions of a 3×3×3 Rubik's Cube.
  • Password strength: Usage of the 95-character set found on standard computer keyboards for a 10-character password yields a computationally intractable 59,873,693,923,837,890,625 (9510, approximately 5.99×1019) permutations.
  • Economics: Hyperinflation in Zimbabwe estimated in February 2009 by some economists at 10 sextillion percent, or a factor of 1020.
≈6.7×1021 sudoku grids

(1000000000000000000000; 10007; short scale: one sextillion; long scale: one thousand trillion, or one trilliard)

ISO: zetta- (Z)

  • Geo – Grains of sand: All the world's beaches combined have been estimated to hold roughly 1021 grains of sand.
  • Computing – Manufacturing: Intel predicted that there would be 1.2×1021 transistors in the world by 2015 and Forbes estimated that 2.9×1021 transistors had been shipped up to 2014.
  • Mathematics – Sudoku: There are 6,670,903,752,021,072,936,960 (≈6.7×1021) 9×9 sudoku grids.
  • Astronomy – Stars: 70 sextillion = 7×1022, the estimated number of stars within range of telescopes (as of 2003).
  • Astronomy – Stars: in the range of 1023 to 1024 stars in the observable universe.
  • Mathematics: 146,361,946,186,458,562,560,000 (≈1.5×1023) is the fifth unitary perfect number.
  • Mathematics: 357,686,312,646,216,567,629,137 (≈3.6×1023) is the largest left-truncatable prime.
  • Chemistry – Physics: The Avogadro constant (6.02214076×1023) is the number of constituents (e.g. atoms or molecules) in one mole of a substance, defined for convenience as expressing the order of magnitude separating the molecular from the macroscopic scale.

(1000000000000000000000000; 10008; short scale: one septillion; long scale: one quadrillion)

ISO: yotta- (Y)

  • Mathematics: 2,833,419,889,721,787,128,217,599 (≈2.8×1024) is the fifth Woodall prime.
  • Mathematics: 3,608,528,850,368,400,786,036,725 (≈3.6×1024) is the largest polydivisible number.
  • Mathematics: 286 = 77,371,252,455,336,267,181,195,264 is the largest known power of two not containing the digit '0' in its decimal representation.

(1000000000000000000000000000; 10009; short scale: one octillion; long scale: one thousand quadrillion, or one quadrilliard)

  • Biology – Atoms in the human body: the average human body contains roughly 7×1027 atoms.
  • Mathematics – Poker: the number of unique combinations of hands and shared cards in a 10-player game of Texas hold 'em is approximately 2.117×1028.
5 × 1030 bacterial cells on Earth

(1000000000000000000000000000000; 100010; short scale: one nonillion; long scale: one quintillion)

  • Biology – Bacterial cells on Earth: The number of bacterial cells on Earth is estimated at around 5,000,000,000,000,000,000,000,000,000,000, or 5 × 1030.
  • Mathematics: 5,000,000,000,000,000,000,000,000,000,027 is the largest quasi-minimal prime.
  • Mathematics: The number of partitions of 1000 is 24,061,467,864,032,622,473,692,149,727,991.
  • Mathematics: 368 = 278,128,389,443,693,511,257,285,776,231,761 is the largest known power of three not containing the digit '0' in its decimal representation.
  • Mathematics: 2108 = 324,518,553,658,426,726,783,156,020,576,256 is the largest known power of two not containing the digit '9' in its decimal representation.

(1000000000000000000000000000000000; 100011; short scale: one decillion; long scale: one thousand quintillion, or one quintilliard)

  • Mathematics – Alexander's Star: There are 72,431,714,252,715,638,411,621,302,272,000,000 (about 7.24×1034) different positions of Alexander's Star.

(1000000000000000000000000000000000000; 100012; short scale: one undecillion; long scale: one sextillion)

  • Physics: ke e2 / Gm2, the ratio of the electromagnetic to the gravitational forces between two protons, is roughly 1036.
  • Mathematics: 227-1-1 = 170,141,183,460,469,231,731,687,303,715,884,105,727 (≈1.7×1038) is the largest known double Mersenne prime.
  • Computing: 2128 = 340,282,366,920,938,463,463,374,607,431,768,211,456 (≈3.40282367×1038), the theoretical maximum number of Internet addresses that can be allocated under the IPv6 addressing system, one more than the largest value that can be represented by a single-precision IEEE floating-point value, the total number of different Universally Unique Identifiers (UUIDs) that can be generated.
  • Cryptography: 2128 = 340,282,366,920,938,463,463,374,607,431,768,211,456 (≈3.40282367×1038), the total number of different possible keys in the AES 128-bit key space (symmetric cipher).

(1000000000000000000000000000000000000000; 100013; short scale: one duodecillion; long scale: one thousand sextillion, or one sextilliard)

(1000000000000000000000000000000000000000000; 100014; short scale: one tredecillion; long scale: one septillion)

  • Mathematics: 141×2141+1 = 393,050,634,124,102,232,869,567,034,555,427,371,542,904,833 (≈3.93×1044) is the second Cullen prime.
  • Mathematics: There are 7,401,196,841,564,901,869,874,093,974,498,574,336,000,000,000 (≈7.4×1045) possible permutations for the Rubik's Revenge (4×4×4 Rubik's Cube).
<4.52×1046 legal chess positions
  • Chess: 4.52×1046 is a proven upper bound for the number of legal chess positions.
  • Geo: 1.33×1050 is the estimated number of atoms in Earth.
  • Mathematics: 2168 = 374,144,419,156,711,147,060,143,317,175,368,453,031,918,731,001,856 is the largest known power of two which is not pandigital: There is no digit '2' in its decimal representation.
  • Mathematics: 3106 = 375,710,212,613,636,260,325,580,163,599,137,907,799,836,383,538,729 is the largest known power of three which is not pandigital: There is no digit '4'.
  • Mathematics: 808,017,424,794,512,875,886,459,904,961,710,757,005,754,368,000,000,000 (≈8.08×1053) is the order of the monster group.
  • Cryptography: 2192 = 6,277,101,735,386,680,763,835,789,423,207,666,416,102,355,444,464,034,512,896 (6.27710174×1057), the total number of different possible keys in the AES 192-bit key space (symmetric cipher).
  • Cosmology: 8×1060 is roughly the number of Planck time intervals since the universe is theorised to have been created in the Big Bang 13.799 ± 0.021 billion years ago.
  • Cosmology: 1×1063 is Archimedes' estimate in The Sand Reckoner of the total number of grains of sand that could fit into the entire cosmos, the diameter of which he estimated in stadia to be what we call 2 light-years.
  • Mathematics – Cards: 52! = 80,658,175,170,943,878,571,660,636,856,403,766,975,289,505,440,883,277,824,000,000,000,000 (≈8.07×1067) – the number of ways to order the cards in a 52-card deck.
  • Mathematics: There are ≈1.01×1068 possible combinations for the Megaminx.
  • Mathematics: 1,808,422,353,177,349,564,546,512,035,512,530,001,279,481,259,854,248,860,454,348,989,451,026,887 (≈1.81×1072) – The largest known prime factor found by ECM factorization as of 2010[update].
  • Mathematics: There are 282,870,942,277,741,856,536,180,333,107,150,328,293,127,731,985,672,134,721,536,000,000,000,000,000 (≈2.83×1074) possible permutations for the Professor's Cube (5×5×5 Rubik's Cube).
  • Cryptography: 2256 = 115,792,089,237,316,195,423,570,985,008,687,907,853,269,984,665,640,564,039,457,584,007,913,129,639,936 (≈1.15792089×1077), the total number of different possible keys in the AES 256-bit key space (symmetric cipher).
  • Cosmology: Various sources estimate the total number of fundamental particles in the observable universe to be within the range of 1080 to 1085. However, these estimates are generally regarded as guesswork. (Compare the Eddington number, the estimated total number of protons in the observable universe.)
  • Computing: 9.999 999×1096 is equal to the largest value that can be represented in the IEEE decimal32 floating-point format.
  • Computing: 69! (roughly 1.7112245×1098), is the highest factorial value that can be represented on a calculator with two digits for powers of ten without overflow.
  • Mathematics: One googol, 1×10100, 1 followed by one hundred zeros, or 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000.

(10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000; short scale: ten duotrigintillion; long scale: ten thousand sexdecillion, or ten sexdecillard)

  • Mathematics: There are 157 152 858 401 024 063 281 013 959 519 483 771 508 510 790 313 968 742 344 694 684 829 502 629 887 168 573 442 107 637 760 000 000 000 000 000 000 000 000 (≈1.57×10116) distinguishable permutations of the V-Cube 6 (6×6×6 Rubik's Cube).
  • Chess: Shannon number, 10120, a lower bound of the game-tree complexity of chess.
  • Physics: 10120, discrepancy between the observed value of the cosmological constant and a naive estimate based on Quantum Field Theory and the Planck energy.
  • Physics: 8×10120, ratio of the mass-energy in the observable universe to the energy of a photon with a wavelength the size of the observable universe.
  • Mathematics: 19 568 584 333 460 072 587 245 340 037 736 278 982 017 213 829 337 604 336 734 362 294 738 647 777 395 483 196 097 971 852 999 259 921 329 236 506 842 360 439 300 (≈1.96×10121) is the period of primary pretenders.
  • History – Religion: Asaṃkhyeya is a Buddhist name for the number 10140. It is listed in the Avatamsaka Sutra and metaphorically means "innumerable" in the Sanskrit language of ancient India.
  • Xiangqi: 10150, an estimation of the game-tree complexity of xiangqi.
  • Mathematics: There are 19 500 551 183 731 307 835 329 126 754 019 748 794 904 992 692 043 434 567 152 132 912 323 232 706 135 469 180 065 278 712 755 853 360 682 328 551 719 137 311 299 993 600 000 000 000 000 000 000 000 000 000 000 000 (≈1.95×10160) distinguishable permutations of the V-Cube 7 (7×7×7 Rubik's Cube).
≈2.08×10170 legal Go positions
  • Go: There are 208 168 199 381 979 984 699 478 633 344 862 770 286 522 453 884 530 548 425 639 456 820 927 419 612 738 015 378 525 648 451 698 519 643 907 259 916 015 628 128 546 089 888 314 427 129 715 319 317 557 736 620 397 247 064 840 935 (≈2.08×10170) legal positions in the game of Go. See Go and mathematics.
  • Economics: The annualized rate of the hyperinflation in Hungary in 1946 was estimated to be 2.9×10177%. It was the most extreme case of hyperinflation ever recorded.
  • Board games: 3.457×10181, number of ways to arrange the tiles in English Scrabble on a standard 15-by-15 Scrabble board.
  • Physics: 10186, approximate number of Planck volumes in the observable universe.
  • Shogi: 10226, an estimation of the game-tree complexity of shogi.
  • Physics: 7×10245, approximate spacetime volume of the history of the observable universe in Planck units.
  • Computing: 1.797 693 134 862 315 807×10308 is approximately equal to the largest value that can be represented in the IEEE double precision floating-point format.
  • Computing: (10 – 10−15)×10384 is equal to the largest value that can be represented in the IEEE decimal64 floating-point format.
  • Mathematics: 997# × 31# × 25 × 34 × 54 × 7 = 7 128 865 274 665 093 053 166 384 155 714 272 920 668 358 861 885 893 040 452 001 991 154 324 087 581 111 499 476 444 151 913 871 586 911 717 817 019 575 256 512 980 264 067 621 009 251 465 871 004 305 131 072 686 268 143 200 196 609 974 862 745 937 188 343 705 015 434 452 523 739 745 298 963 145 674 982 128 236 956 232 823 794 011 068 809 262 317 708 861 979 540 791 247 754 558 049 326 475 737 829 923 352 751 796 735 248 042 463 638 051 137 034 331 214 781 746 850 878 453 485 678 021 888 075 373 249 921 995 672 056 932 029 099 390 891 687 487 672 697 950 931 603 520 000 (≈7.13×10432) is the least common multiple of every integer from 1 to 1000.
  • Mathematics: There are approximately 1.869×104099 distinguishable permutations of the world's largest Rubik's cube (33×33×33).
  • Computing: 1.189 731 495 357 231 765 05×104932 is approximately equal to the largest value that can be represented in the IEEE 80-bit x86 extended precision floating-point format.
  • Computing: 1.189 731 495 357 231 765 085 759 326 628 007 0×104932 is approximately equal to the largest value that can be represented in the IEEE quadruple-precision floating-point format.
  • Computing: (10 – 10−33)×106144 is equal to the largest value that can be represented in the IEEE decimal128 floating-point format.
  • Computing: 1010,000 − 1 is equal to the largest value that can be represented in Windows Phone's calculator.
  • Mathematics: 26384405 + 44052638 is a 15,071-digit Leyland prime; the largest which has been proven as of 2010[update].
  • Mathematics: 3,756,801,695,685 × 2666,669 ± 1 are 200,700-digit twin primes; the largest known as of December 2011[update].
  • Mathematics: 18,543,637,900,515 × 2666,667 − 1 is a 200,701-digit Sophie Germain prime; the largest known as of April 2012[update].
  • Mathematics: approximately 7.76 × 10206,544 cattle in the smallest herd which satisfies the conditions of Archimedes's cattle problem.
  • Mathematics: 10474,500 + 999 × 10237,249 + 1 is a 474,501-digit palindromic prime, the largest known as of April 2021[update].
  • Mathematics: 2,996,863,034,895 × 21,290,000±1 are 388,342-digit twin primes; the largest known as of April 2021[update].
  • Mathematics: 1,098,133# – 1 is a 476,311-digit primorial prime; the largest known as of March 2012[update].
  • Mathematics: 208,003! − 1 is a 1,015,843-digit factorial prime; the largest known as of April 2021[update].
  • Mathematics – Literature: Jorge Luis Borges' Library of Babel contains at least 251,312,000 ≈ 1.956 × 101,834,097 books (this is a lower bound).
  • Mathematics: 4 × 721,119,849 − 1 is the smallest prime of the form 4×72n−1 Archived 2021-04-12 at the Wayback Machine
  • Mathematics: (215,135,397+1)/3 is a 4,556,209-digit Wagstaff probable prime, the largest known as of June 2021[update].
  • Mathematics: 1,059,0941,048,576 + 1 is a 6,317,602-digit Generalized Fermat prime, the largest known as of April 2021[update].
  • Mathematics: (108,177,207−1)/9 is a 8,177,207-digit probable prime, the largest known as of 8 May 2021[update].
  • Mathematics: 10,223 × 231,172,165 + 1 is a 9,383,761-digit Proth prime, the largest known Proth prime and non-Mersenne prime as of 2021[update].
Digit growth in the largest known prime
  • Mathematics: 282,589,933 − 1 is a 24,862,048-digit Mersenne prime; the largest known prime of any kind as of 2020[update].
  • Mathematics: 282,589,932 × (282,589,933 − 1) is a 49,724,095-digit perfect number, the largest known as of 2020.
  • Mathematics – History: 108×1016, largest named number in Archimedes' Sand Reckoner.
  • Mathematics: 10googol ( 10 10 100 {\displaystyle 10^{10^{100}}} ), a googolplex. A number 1 followed by 1 googol zeros. Carl Sagan has estimated that 1 googolplex, fully written out, would not fit in the observable universe because of its size, while also noting that one could also write the number as 1010100.

(One googolplex; 10googol; short scale: googolplex; long scale: googolplex)

  • Mathematics – Literature: The number of different ways in which the books in Jorge Luis Borges' Library of Babel can be arranged is approximately 10 10 1 , 834 , 102 {\displaystyle 10^{10^{1,834,102}}} , the factorial of the number of books in the Library of Babel.
  • Cosmology: In chaotic inflation theory, proposed by physicist Andrei Linde, our universe is one of many other universes with different physical constants that originated as part of our local section of the multiverse, owing to a vacuum that had not decayed to its ground state. According to Linde and Vanchurin, the total number of these universes is about 10 10 10 , 000 , 000 {\displaystyle 10^{10^{10,000,000}}} .
  • Mathematics: 10 10 10 34 {\displaystyle 10^{\,\!10^{10^{34}}}} , order of magnitude of an upper bound that occurred in a proof of Skewes (this was later estimated to be closer to 1.397 × 10316).
  • Cosmology: The estimated number of Planck time units for quantum fluctuations and tunnelling to generate a new Big Bang is estimated to be 10 10 10 56 {\displaystyle 10^{10^{10^{56}}}} .
  • Mathematics: 10 10 10 100 {\displaystyle 10^{\,\!10^{10^{100}}}} , a number in the googol family called a googolplexplex, googolplexian, or googolduplex. 1 followed by a googolplex zeros, or 10googolplex
  • Mathematics: 10 10 10 963 {\displaystyle 10^{\,\!10^{10^{963}}}} , order of magnitude of another upper bound in a proof of Skewes.
  • Mathematics: Steinhaus' mega lies between 10[4]257 and 10[4]258 (where a[n]b is hyperoperation).
  • Mathematics: Moser's number, "2 in a mega-gon" in Steinhaus–Moser notation, is approximately equal to 10[10[4]257]10, the last four digits are ...1056.
  • Mathematics: Graham's number, the last ten digits of which are ...2464195387, equals 3[3[3[...3[3[3[6]3+2]3+2]3...]3+2]3+2]3 with 64 levels of brackets. Arises as an upper bound solution to a problem in Ramsey theory. Representation in powers of 10 would be impractical (the number of 10s in the power tower 10 10 10 . . . {\displaystyle 10^{\,\!10^{10^{...}}}} would be virtually indistinguishable from the number itself).
  • Mathematics: TREE(3): appears in relation to a theorem on trees in graph theory. Representation of the number is difficult, but one weak lower bound is AA(187196)(1), where A(n) is a version of the Ackermann function.
  • Mathematics: SSCG(3): appears in relation to the Robertson–Seymour theorem. Known to be greater than both TREE(3) and the TREE function nested inside itself TREE(3) times with TREE(3) at the bottom.
  • Mathematics: Transcendental integers: a set of numbers defined in 2000 by Harvey Friedman, appears in proof theory.
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Orders of magnitude numbers Article Talk Language Watch Edit 160 160 Redirected from Trillion short scale This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Orders of magnitude numbers news newspapers books scholar JSTOR July 2016 Learn how and when to remove this template message This list contains selected positive numbers in increasing order including counts of things dimensionless quantities and probabilities Each number is given a name in the short scale which is used in English speaking countries as well as a name in the long scale which is used in some of the countries that do not have English as their national language The logarithmic scale can compactly represent the relationship among variously sized numbers Contents 1 Smaller than 10 100 one googolth 2 10 100 to 10 30 3 10 30 4 10 27 5 10 24 6 10 21 7 10 18 8 10 15 9 10 12 10 10 9 11 10 6 12 10 3 13 10 2 14 10 1 15 100 16 101 17 102 18 103 19 104 20 105 21 106 22 107 23 108 24 109 25 1010 26 1011 27 1012 28 1015 29 1018 30 1021 31 1024 32 1027 33 1030 34 1033 35 1036 36 1039 37 1042 to 10100 38 10100 one googol to 101000 39 101000 to 1010100 one googolplex 40 Larger than 1010100 41 See also 42 References 43 External linksSmaller than 10 100 one googolth Edit Chimpanzee probably not typing Hamlet Mathematics random selections Approximately 10 183 800 is a rough first estimate of the probability that a typing monkey or an English illiterate typing robot when placed in front of a typewriter will type out William Shakespeare s play Hamlet as its first set of inputs on the precondition it typed the needed number of characters 1 However demanding correct punctuation capitalization and spacing the probability falls to around 10 360 783 2 Computing 2 2 10 78913 is approximately equal to the smallest positive non zero value that can be represented by an octuple precision IEEE floating point value 1 10 6176 is equal to the smallest positive non zero value that can be represented by a quadruple precision IEEE decimal floating point value 6 5 10 4966 is approximately equal to the smallest positive non zero value that can be represented by a quadruple precision IEEE floating point value 3 6 10 4951 is approximately equal to the smallest positive non zero value that can be represented by an 80 bit x86 double extended IEEE floating point value 1 10 398 is equal to the smallest positive non zero value that can be represented by a double precision IEEE decimal floating point value 4 9 10 324 is approximately equal to the smallest positive non zero value that can be represented by a double precision IEEE floating point value 1 5 10 157 is approximately equal to the probability that in a randomly selected group of 365 people all of them will have different birthdays 3 1 10 101 is equal to the smallest positive non zero value that can be represented by a single precision IEEE decimal floating point value 10 100 to 10 30 Edit 1 52 chance of a specific shuffle Mathematics The chances of shuffling a standard 52 card deck in any specific order is around 1 24 10 68 or exactly 1 52 4 Computing The number 1 4 10 45 is approximately equal to the smallest positive non zero value that can be represented by a single precision IEEE floating point value 10 30 Edit 0 000000 000 000 000 000 000 000 000 001 1000 10 short scale one nonillionth long scale one quintillionth Mathematics The probability in a game of bridge of all four players getting a complete suit each is approximately 4 47 10 28 5 10 27 Edit 0 000000 000 000 000 000 000 000 001 1000 9 short scale one octillionth long scale one quadrilliardth 10 24 Edit 0 000000 000 000 000 000 000 001 1000 8 short scale one septillionth long scale one quadrillionth ISO yocto y 10 21 Edit 0 000000 000 000 000 000 001 1000 7 short scale one sextillionth long scale one trilliardth ISO zepto z Mathematics The probability of matching 20 numbers for 20 in a game of keno is approximately 2 83 10 19 10 18 Edit Snake eyes 0 000000 000 000 000 001 1000 6 short scale one quintillionth long scale one trillionth ISO atto a Mathematics The probability of rolling snake eyes 10 times in a row on a pair of fair dice is about 2 74 10 16 10 15 Edit 0 000000 000 000 001 1000 5 short scale one quadrillionth long scale one billiardth ISO femto f Mathematics The Ramanujan constant e p 163 262 537 412 640 768 743 999 999 999 999 25 displaystyle e pi sqrt 163 262 537 412 640 768 743 999 999 999 999 25 ldots is an almost integer differing from the nearest integer by approximately 7 5 10 13 10 12 Edit 0 000000 000 001 1000 4 short scale one trillionth long scale one billionth ISO pico p Mathematics The probability in a game of bridge of one player getting a complete suit is approximately 2 52 10 11 0 000000 002 52 Biology Human visual sensitivity to 1000 nm light is approximately 1 0 10 10 of its peak sensitivity at 555 nm 6 10 9 Edit 0 000000 001 1000 3 short scale one billionth long scale one milliardth ISO nano n Mathematics Lottery The odds of winning the Grand Prize matching all 6 numbers in the US Powerball lottery with a single ticket under the rules as of October 2015 update are 292 201 338 to 1 against for a probability of 3 422 10 9 0 000000 342 2 Mathematics Lottery The odds of winning the Grand Prize matching all 6 numbers in the Australian Powerball lottery with a single ticket under the rules as of April 2018 update are 134 490 400 to 1 against for a probability of 7 435 10 9 0 000000 743 5 Mathematics Lottery The odds of winning the Jackpot matching the 6 main numbers in the UK National Lottery with a single ticket under the rules as of August 2009 update are 13 983 815 to 1 against for a probability of 7 151 10 8 0 000007 151 10 6 Edit 0 000001 1000 2 long and short scales one millionth ISO micro m Poker hands Poker hands Hand Chance1 Royal flush 0 00015 2 Straight flush 0 0014 3 Four of a kind 0 024 4 Full house 0 14 5 Flush 0 19 6 Straight 0 59 7 Three of a kind 2 1 8 Two pairs 4 8 9 One pair 42 10 No pair 50 Mathematics Poker The odds of being dealt a royal flush in poker are 649 739 to 1 against for a probability of 1 5 10 6 0 00015 7 Mathematics Poker The odds of being dealt a straight flush other than a royal flush in poker are 72 192 to 1 against for a probability of 1 4 10 5 0 0014 Mathematics Poker The odds of being dealt a four of a kind in poker are 4 164 to 1 against for a probability of 2 4 10 4 0 024 10 3 Edit 0 001 1000 1 one thousandth ISO milli m Mathematics Poker The odds of being dealt a full house in poker are 693 to 1 against for a probability of 1 4 10 3 0 14 Mathematics Poker The odds of being dealt a flush in poker are 507 8 to 1 against for a probability of 1 9 10 3 0 19 Mathematics Poker The odds of being dealt a straight in poker are 253 8 to 1 against for a probability of 4 10 3 0 39 Physics a 0 007297 352 570 5 the fine structure constant 10 2 Edit 0 01 one hundredth ISO centi c Mathematics Lottery The odds of winning any prize in the UK National Lottery with a single ticket under the rules as of 2003 are 54 to 1 against for a probability of about 0 018 1 8 Mathematics Poker The odds of being dealt a three of a kind in poker are 46 to 1 against for a probability of 0 021 2 1 Mathematics Lottery The odds of winning any prize in the Powerball with a single ticket under the rules as of 2015 are 24 87 to 1 against for a probability of 0 0402 4 02 Mathematics Poker The odds of being dealt two pair in poker are 21 to 1 against for a probability of 0 048 4 8 10 1 Edit 0 1 one tenth ISO deci d Legal history 10 was widespread as the tax raised for income or produce in the ancient and medieval period see tithe Mathematics ii e p 2 0 207879576 Mathematics Poker The odds of being dealt only one pair in poker are about 5 to 2 against 2 37 to 1 for a probability of 0 42 42 Mathematics Poker The odds of being dealt no pair in poker are nearly 1 to 2 for a probability of about 0 5 50 100 Edit Eight planets of the solar system 1 one Demography The population of Monowi an incorporated village in Nebraska United States was one in 2010 Religion One is the number of gods in Judaism Christianity and Islam monotheistic religions Computing Unicode One character is assigned to the Lisu Supplement Unicode block the fewest of any public use Unicode block as of Unicode 14 0 2021 Mathematics 2 1 414213 562 373 095 049 the ratio of the diagonal of a square to its side length Mathematics f 1 618033 988 749 894 848 the golden ratio Mathematics 3 1 732050 807 568 877 293 the ratio of the diagonal of a unit cube Mathematics the number system understood by most computers the binary system uses 2 digits 0 and 1 Mathematics 5 2 236 067 9775 the correspondent to the diagonal of a rectangle whose side lengths are 1 and 2 Mathematics 2 1 2 414 213 562 373 095 049 The ratio of smaller of the two quantities to the larger quantity is the same as the ratio of the larger quantity to the sum of the smaller quantity and twice the larger quantity Mathematics e 2 718281 828 459 045 087 the base of the natural logarithm Mathematics the number system understood by ternary computers the ternary system uses 3 digits 0 1 and 2 Religion three manifestations of God in the Christian Trinity Mathematics p 3 141592 653 589 793 238 the ratio of a circle s circumference to its diameter Religion the Four Noble Truths in Buddhism Biology 7 2 in cognitive science George A Miller s estimate of the number of objects that can be simultaneously held in human working memory Music 7 notes in a major or minor scale Astronomy 8 planets in the Solar System Religion the Eightfold Path in Buddhism Literature 9 circles of Hell in the Inferno by Dante Alighieri 101 Edit Ten digits on two human hands 10 ten ISO deca da Demography The population of Pesnopoy a village in Bulgaria was 10 in 2007 Human scale There are 10 digits on a pair of human hands and 10 toes on a pair of human feet Mathematics The number system used in everyday life the decimal system has 10 digits 0 1 2 3 4 5 6 7 8 9 Religion the Ten Commandments in the Abrahamic religions Music The number of notes 12 in a chromatic scale Astrology There are 12 zodiac signs each one representing part of the annual path of the sun s movement across the night sky Computing Microsoft Windows Twelve successive consumer versions of Windows NT have been released as of December 2021 Music The number 15 of completed numbered string quartets by each of Ludwig van Beethoven and Dmitri Shostakovich Linguistics The Finnish language has fifteen noun cases Mathematics The hexadecimal system a common number system used in computer programming uses 16 digits where the last 6 are usually represented by letters 0 1 2 3 4 5 6 7 8 9 A B C D E F Computing Unicode The minimum possible size of a Unicode block is 16 contiguous code points i e U abcde0 U abcdeF Computing UTF 16 Unicode There are 17 addressable planes in UTF 16 and thus as Unicode is limited to the UTF 16 code space 17 valid planes in Unicode Science fiction The 23 enigma plays a prominent role in the plot of The Illuminatus Trilogy by Robert Shea and Robert Anton Wilson Mathematics ep 23 140692633 Music a combined total of 24 major and minor keys also the number of works in some musical cycles of J S Bach Frederic Chopin Alexander Scriabin and Dmitri Shostakovich Alphabetic writing There are 26 letters in the Latin derived English alphabet excluding letters found only in foreign loanwords Science fiction The number 42 in the novel The Hitchhiker s Guide to the Galaxy by Douglas Adams is the Answer to the Ultimate Question of Life the Universe and Everything which is calculated by an enormous supercomputer over a period of 7 5 million years Biology Each human cell contains 46 chromosomes Phonology There are 47 phonemes in English phonology in Received Pronunciation Syllabic writing There are 49 letters in each of the two kana syllabaries hiragana and katakana used to represent Japanese not counting letters representing sound patterns that have never occurred in Japanese Chess Either player in a chess game can claim a draw if 50 consecutive moves are made by each side without any captures or pawn moves Demography The population of Nassau Island part of the Cook Islands is around 78 in 2016 Syllabic writing There are 85 letters in the modern version of the Cherokee syllabary Music There are 88 keys on a grand piano Computing ASCII There are 95 printable characters in the ASCII character set 102 Edit 128 ASCII characters 100 hundred ISO hecto h Music There are 104 numbered symphonies of Franz Josef Haydn European history Groupings of 100 homesteads were a common administrative unit in Northern Europe and Great Britain see Hundred county division Religion 108 is a sacred number in Hinduism Chemistry 118 chemical elements have been discovered or synthesized as of 2016 Computing ASCII There are 128 characters in the ASCII character set including nonprintable control characters Phonology The Taa language is estimated to have between 130 and 164 distinct phonemes Political Science There were 193 member states of the United Nations as of 2011 Computing A GIF image or an 8 bit image supports maximum 256 28 colors Computing Unicode There are 320 different Unicode blocks as of Unicode 14 0 2021 Aviation 583 persons died in the 1977 Tenerife airport disaster the deadliest accident not caused by deliberate terrorist action in the history of civil aviation Music The highest number 626 in the Kochel catalogue of works of Wolfgang Amadeus Mozart Demography The Vatican City the least populous independent country has an approximate population of 800 as of 2018 103 Edit Roman legion precise size varies 1000 thousand ISO kilo k Demography The population of Ascension Island is 1 122 Music 1 128 number of known extant works by Johann Sebastian Bach recognized in the Bach Werke Verzeichnis as of 2017 Typesetting 2 000 3 000 letters on a typical typed page of text Mathematics 2 520 5 7 8 9 or 23 32 5 7 is the least common multiple of every positive integer under and including 10 Terrorism 2 996 persons including 19 terrorists died in the terrorist attacks of September 11 2001 Biology the DNA of the simplest viruses has 3 000 base pairs 8 Military history 4 200 Republic or 5 200 Empire was the standard size of a Roman legion Linguistics Estimates for the linguistic diversity of living human languages or dialects range between 5 000 and 10 000 SIL Ethnologue in 2009 listed 6 909 known living languages Astronomy Catalogues There are 7 840 deep sky objects in the NGC Catalogue from 1888 Lexicography 8 674 unique words in the Hebrew Bible 104 Edit 10000 ten thousand or a myriad Biology Each neuron in the human brain is estimated to connect to 10 000 others Demography The population of Tuvalu was 10 544 in 2007 Lexicography 14 500 unique English words occur in the King James Version of the Bible Zoology There are approximately 17 500 distinct butterfly species known 9 Language There are 20 000 40 000 distinct Chinese characters in more than occasional use Biology Each human being is estimated to have 20 000 coding genes 10 Grammar Each regular verb in Cherokee can have 21 262 inflected forms War 22 717 Union and Confederate soldiers were killed wounded or missing in the Battle of Antietam the bloodiest single day of battle in American history Computing Unicode 42 720 characters are encoded in CJK Unified Ideographs Extension B the most of any single public use Unicode block as of Unicode 14 0 2021 Aviation As of July 2021 update 44 000 airframes have been built of the Cessna 172 the most produced aircraft in history Computing Fonts The maximum possible number of glyphs in a TrueType or OpenType font is 65 535 216 1 the largest number representable by the 16 bit unsigned integer used to record the total number of glyphs in the font Computing Unicode A plane contains 65 536 216 code points this is also the maximum size of a Unicode block and the total number of code points available in the obsolete UCS 2 encoding Mathematics 65 537 is the largest known Fermat prime Memory As of 2015 update the largest number of decimal places of p that have been recited from memory is 70 030 11 105 Edit 100 000 150 000 strands of human hair 100000 one hundred thousand or a lakh Demography The population of Saint Vincent and the Grenadines was 100 982 in 2009 Biology Strands of hair on a head The average human head has about 100 000 150 000 strands of hair Literature approximately 100 000 verses shlokas in the Mahabharata Computing Unicode 144 762 characters including control characters encoded in Unicode as of version 14 0 2021 Language 267 000 words in James Joyce s Ulysses Computing Unicode 288 512 code points assigned to a Unicode block as of Unicode 14 0 Mathematics 294 000 The approximate number of entries in The On Line Encyclopedia of Integer Sequences as of November 2017 update 12 Genocide 300 000 people killed in the Rape of Nanking Language English words The New Oxford Dictionary of English contains about 360 000 definitions for English words Biology Plants There are approximately 390 000 distinct plant species known of which approximately 20 or 78 000 are in risk of extinction 13 Biology Flowers There are approximately 400 000 distinct flower species on Earth 14 Literature 564 000 words in War and Peace by Leo Tolstoy Literature 930 000 words in the King James Version of the Bible Mathematics There are 933 120 possible combinations on the Pyraminx Computing Unicode There are 974 530 publicly assignable code points i e not surrogates private use code points or noncharacters in Unicode 106 Edit 3 674 160 Pocket Cube positions 1000 000 10002 long and short scales one million ISO mega M Demography The population of Riga Latvia was 1 003 949 in 2004 according to Eurostat Computing UTF 8 There are 1 112 064 220 216 211 valid UTF 8 sequences excluding overlong sequences and sequences corresponding to code points used for UTF 16 surrogates or code points beyond U 10FFFF Computing UTF 16 Unicode There are 1 114 112 220 216 distinct values encodable in UTF 16 and thus as Unicode is currently limited to the UTF 16 code space 1 114 112 valid code points in Unicode 1 112 064 scalar values and 2 048 surrogates Ludology Number of games Approximately 1 181 019 video games have been created as of 2019 15 Biology Species The World Resources Institute claims that approximately 1 4 million species have been named out of an unknown number of total species estimates range between 2 and 100 million species Some scientists give 8 8 million species as an exact figure Genocide Approximately 800 000 1 500 000 1 5 million Armenians were killed in the Armenian genocide Linguistics The number of possible conjugations for each verb in the Archi language is 1 502 839 16 Info The freedb database of CD track listings has around 1 750 000 entries as of June 2005 update War 1 857 619 casualties at the Battle of Stalingrad Computing UTF 8 2 164 864 221 216 211 27 possible one to four byte UTF 8 sequences if the restrictions on overlong sequences surrogate code points and code points beyond U 10FFFF are not adhered to Note that not all of these correspond to unique code points Mathematics Playing cards There are 2 598 960 different 5 card poker hands that can be dealt from a standard 52 card deck Mathematics There are 3 149 280 possible positions for the Skewb Mathematics Rubik s Cube 3 674 160 is the number of combinations for the Pocket Cube 2 2 2 Rubik s Cube Info Web sites As of June 24 2022 the English Wikipedia contains approximately 6 5 million articles in the English language Geography Computing Geographic places The NIMA GEOnet Names Server contains approximately 3 88 million named geographic features outside the United States with 5 34 million names The USGS Geographic Names Information System claims to have almost 2 million physical and cultural geographic features within the United States Computing Supercomputer hardware 4 981 760 processor cores in the final configuration of the Tianhe 2 supercomputer Genocide Approximately 5 100 000 6 200 000 Jews were killed in the Holocaust 107 Edit 12 988 816 domino tilings of a checkerboard 10000 000 a crore long and short scales ten million Demography The population of Haiti was 10 085 214 in 2010 Literature 11 206 310 words in Devta by Mohiuddin Nawab the longest continuously published story known in the history of literature Genocide An estimated 12 million persons shipped from Africa to the New World in the Atlantic slave trade Mathematics 12 988 816 is the number of domino tilings of an 8 8 checkerboard War 15 to 22 million casualties estimated as a result of World War I Genocide Famine 15 million is an estimated lower bound for the death toll of the 1959 1961 Great Chinese Famine the deadliest known famine in human history Computing 16 777 216 different colors can be generated using the hex code system in HTML note that the trichromatic color vision of the human eye can only distinguish between about an estimated 1 000 000 different colors Science Fiction In Isaac Asimov s Galactic Empire in 22 500 CE there are 25 000 000 different inhabited planets in the Galactic Empire all inhabited by humans in Asimov s human galaxy scenario Genocide Famine 55 million is an estimated upper bound for the death toll of the Great Chinese Famine Literature Wikipedia contains a total of around 58 million articles in 327 languages as of June 2022 War 70 to 85 million casualties estimated as a result of World War II Mathematics 73 939 133 is the largest right truncatable prime 108 Edit 100000 000 long and short scales one hundred million Demography The population of the Philippines was 100 981 437 in 2015 Internet YouTube The number of YouTube channels is estimated to be 113 9 million 17 Info Books The British Library claims that it holds over 150 million items The Library of Congress claims that it holds approximately 148 million items See The Gutenberg Galaxy Video gaming As of 2020 update approximately 200 million copies of Minecraft the most sold video game in history have been sold Mathematics More than 215 000 000 mathematical constants are collected on the Plouffe s Inverter as of 2010 update 18 Mathematics 275 305 224 is the number of 5 5 normal magic squares not counting rotations and reflections This result was found in 1973 by Richard Schroeppel Demography The population of the United States was 328 239 523 in 2019 Mathematics 358 833 097 stellations of the rhombic triacontahedron Info Web sites As of November 2011 update the Netcraft web survey estimates that there are 525 998 433 526 million distinct websites Astronomy Cataloged stars The Guide Star Catalog II has entries on 998 402 801 distinct astronomical objects 109 Edit World population estimates 1000 000 000 10003 short scale one billion long scale one thousand million or one milliard ISO giga G Demography The population of Africa reached 1 000 000 000 sometime in 2009 Demographics India 1 381 000 000 approximate population of India in 2020 Transportation Cars As of 2018 update there are approximately 1 4 billion cars in the world corresponding to around 18 of the human population 19 Demographics China 1 439 000 000 approximate population of the People s Republic of China in 2020 Internet Google There are more than 1 500 000 000 active Gmail users globally 20 Internet Approximately 1 500 000 000 active users were on Facebook as of October 2015 21 Computing Computational limit of a 32 bit CPU 2 147 483 647 is equal to 231 1 and as such is the largest number which can fit into a signed two s complement 32 bit integer on a computer Computing UTF 8 2 147 483 648 231 possible code points U 0000 U 7FFFFFFF in the pre 2003 version of UTF 8 including five and six byte sequences before the UTF 8 code space was limited to the much smaller set of values encodable in UTF 16 Biology base pairs in the genome approximately 3 3 109 base pairs in the human genome 10 Linguistics 3 400 000 000 the total number of speakers of Indo European languages of which 2 400 000 000 are native speakers the other 1 000 000 000 speak Indo European languages as a second language Mathematics and computing 4 294 967 295 232 1 the product of the five known Fermat primes and the maximum value for a 32 bit unsigned integer in computing Computing IPv4 4 294 967 296 232 possible unique IP addresses Computing 4 294 967 296 the number of bytes in 4 gibibytes in computation 32 bit computers can directly access 232 units bytes of address space which leads directly to the 4 gigabyte limit on main memory Mathematics 4 294 967 297 is a Fermat number and semiprime It is the smallest number of the form 2 2 n 1 displaystyle 2 2 n 1 which is not a prime number Demographics world population 7 953 000 000 Estimated population for the world as of June 2022 1010 Edit 10000 000 000 short scale ten billion long scale ten thousand million or ten milliard Biology bacteria in the human body There are roughly 1010 bacteria in the human mouth 22 Computing web pages approximately 5 6 1010 web pages indexed by Google as of 2010 1011 Edit 100000 000 000 short scale one hundred billion long scale hundred thousand million or hundred milliard Astronomy There are 100 billion planets located in the Milky Way 23 24 Biology Neurons in the brain approximately 1 0 2 1011 neurons in the human brain 25 Paleodemography Number of humans that have ever lived approximately 1 2 0 3 1011 live births of anatomically modern humans since the beginning of the Upper Paleolithic 26 Astronomy stars in our galaxy of the order of 1011 stars in the Milky Way galaxy 27 1012 Edit 1012 stars in the Andromeda Galaxy 1000 000 000 000 10004 short scale one trillion long scale one billion ISO tera T Astronomy Andromeda Galaxy which is part of the same Local Group as our galaxy contains about 1012 stars Biology Bacteria on the human body The surface of the human body houses roughly 1012 bacteria 22 Astronomy Galaxies A 2016 estimate says there are 2 1012 galaxies in the observable universe 28 Biology Blood cells in the human body The average human body has 2 5 1012 red blood cells 29 Biology An estimate says there were 3 04 1012 trees on Earth in 2015 30 Marine biology 3 500 000 000 000 3 5 1012 estimated population of fish in the ocean citation needed 1014 stars in IC 1101 Mathematics 7 625 597 484 987 a number that often appears when dealing with powers of 3 It can be expressed as 19683 3 displaystyle 19683 3 27 9 displaystyle 27 9 3 27 displaystyle 3 27 3 3 3 displaystyle 3 3 3 and 33 or when using Knuth s up arrow notation it can be expressed as 3 3 displaystyle 3 uparrow uparrow 3 and 3 2 displaystyle 3 uparrow uparrow uparrow 2 Mathematics 1013 The approximate number of known non trivial zeros of the Riemann zeta function as of 2004 update 31 Mathematics Known digits of p As of March 2019 update the number of known digits of p is 31 415 926 535 897 the integer part of p 1013 32 Biology approximately 1014 synapses in the human brain 33 Astronomy IC 1101 a supergiant elliptical galaxy located inside the Abell 2029 cluster is estimated to have approximately 100 trillion 1014 stars inside the galaxy making it the largest known galaxy in the universe Biology Cells in the human body The human body consists of roughly 1014 cells of which only 1013 are human 34 35 The remaining 90 non human cells though much smaller and constituting much less mass are bacteria which mostly reside in the gastrointestinal tract although the skin is also covered in bacteria Cryptography 150 738 274 937 250 configurations of the plug board of the Enigma machine used by the Germans in WW2 to encode and decode messages by cipher Computing MAC 48 281 474 976 710 656 248 possible unique physical addresses Mathematics 953 467 954 114 363 is the largest known Motzkin prime 1015 Edit 1015 to 1016 ants on Earth 1000 000 000 000 000 10005 short scale one quadrillion long scale one thousand billion or one billiard ISO peta P Biology Insects 1 000 000 000 000 000 to 10 000 000 000 000 000 1015 to 1016 The estimated total number of ants on Earth alive at any one time their biomass is approximately equal to the total biomass of the human species 36 Computing 9 007 199 254 740 992 253 number until which all integer values can exactly be represented in IEEE double precision floating point format Mathematics 48 988 659 276 962 496 is the fifth taxicab number Science Fiction In Isaac Asimov s Galactic Empire in what we call 22 500 CE there are 25 000 000 different inhabited planets in the Galactic Empire all inhabited by humans in Asimov s human galaxy scenario each with an average population of 2 000 000 000 thus yielding a total Galactic Empire population of approximately 50 000 000 000 000 000 Science Fiction There are approximately 1017 sentient beings in the Star Wars galaxy Cryptography There are 256 72 057 594 037 927 936 different possible keys in the obsolete 56 bit DES symmetric cipher 1018 Edit 4 33 1019 Rubik s Cube positions 1000 000 000 000 000 000 10006 short scale one quintillion long scale one trillion ISO exa E Mathematics Goldbach s conjecture has been verified for all n 4 1018 by a project which computed all prime numbers up to that limit 37 Computing Manufacturing An estimated 6 1018 transistors were produced worldwide in 2008 38 Computing Computational limit of a 64 bit CPU 9 223 372 036 854 775 807 about 9 22 1018 is equal to 263 1 and as such is the largest number which can fit into a signed two s complement 64 bit integer on a computer Mathematics NCAA Basketball Tournament There are 9 223 372 036 854 775 808 263 possible ways to enter the bracket Mathematics Bases 9 439 829 801 208 141 318 9 44 1018 is the 10th and by conjecture largest number with more than one digit that can be written from base 2 to base 18 using only the digits 0 to 9 meaning the digits for 10 to 17 are not needed in bases above 10 39 Biology Insects It has been estimated that the insect population of the Earth is about 1019 40 Mathematics Answer to the wheat and chessboard problem When doubling the grains of wheat on each successive square of a chessboard beginning with one grain of wheat on the first square the final number of grains of wheat on all 64 squares of the chessboard when added up is 264 1 18 446 744 073 709 551 615 1 84 1019 Mathematics Legends The Tower of Brahma legend tells about a Hindu temple containing a large room with three posts on one of which are 64 golden discs and the object of the mathematical game is for the Brahmins in this temple to move all of the discs to another pole so that they are in the same order never placing a larger disc above a smaller disc moving only one at a time Using the simplest algorithm for moving the disks it would take 264 1 18 446 744 073 709 551 615 1 84 1019 turns to complete the task the same number as the wheat and chessboard problem above 41 Computing IPv6 18 446 744 073 709 551 616 264 1 84 1019 possible unique 64 subnetworks Mathematics Rubik s Cube There are 43 252 003 274 489 856 000 4 33 1019 different positions of a 3 3 3 Rubik s Cube Password strength Usage of the 95 character set found on standard computer keyboards for a 10 character password yields a computationally intractable 59 873 693 923 837 890 625 9510 approximately 5 99 1019 permutations Economics Hyperinflation in Zimbabwe estimated in February 2009 by some economists at 10 sextillion percent 42 or a factor of 1020 1021 Edit 6 7 1021 sudoku grids 1000 000 000 000 000 000 000 10007 short scale one sextillion long scale one thousand trillion or one trilliard ISO zetta Z Geo Grains of sand All the world s beaches combined have been estimated to hold roughly 1021 grains of sand 43 Computing Manufacturing Intel predicted that there would be 1 2 1021 transistors in the world by 2015 44 and Forbes estimated that 2 9 1021 transistors had been shipped up to 2014 45 Mathematics Sudoku There are 6 670 903 752 021 072 936 960 6 7 1021 9 9 sudoku grids 46 Astronomy Stars 70 sextillion 7 1022 the estimated number of stars within range of telescopes as of 2003 47 Astronomy Stars in the range of 1023 to 1024 stars in the observable universe 48 Mathematics 146 361 946 186 458 562 560 000 1 5 1023 is the fifth unitary perfect number Mathematics 357 686 312 646 216 567 629 137 3 6 1023 is the largest left truncatable prime Chemistry Physics The Avogadro constant 6 022140 76 1023 is the number of constituents e g atoms or molecules in one mole of a substance defined for convenience as expressing the order of magnitude separating the molecular from the macroscopic scale 1024 Edit 1000 000 000 000 000 000 000 000 10008 short scale one septillion long scale one quadrillion ISO yotta Y Mathematics 2 833 419 889 721 787 128 217 599 2 8 1024 is the fifth Woodall prime Mathematics 3 608 528 850 368 400 786 036 725 3 6 1024 is the largest polydivisible number Mathematics 286 77 371 252 455 336 267 181 195 264 is the largest known power of two not containing the digit 0 in its decimal representation 49 1027 Edit 1000 000 000 000 000 000 000 000 000 10009 short scale one octillion long scale one thousand quadrillion or one quadrilliard Biology Atoms in the human body the average human body contains roughly 7 1027 atoms 50 Mathematics Poker the number of unique combinations of hands and shared cards in a 10 player game of Texas hold em is approximately 2 117 1028 1030 Edit 5 1030 bacterial cells on Earth 1000 000 000 000 000 000 000 000 000 000 100010 short scale one nonillion long scale one quintillion Biology Bacterial cells on Earth The number of bacterial cells on Earth is estimated at around 5 000 000 000 000 000 000 000 000 000 000 or 5 1030 51 Mathematics 5 000 000 000 000 000 000 000 000 000 027 is the largest quasi minimal prime Mathematics The number of partitions of 1000 is 24 061 467 864 032 622 473 692 149 727 991 52 Mathematics 368 278 128 389 443 693 511 257 285 776 231 761 is the largest known power of three not containing the digit 0 in its decimal representation Mathematics 2108 324 518 553 658 426 726 783 156 020 576 256 is the largest known power of two not containing the digit 9 in its decimal representation 53 1033 Edit 1000 000 000 000 000 000 000 000 000 000 000 100011 short scale one decillion long scale one thousand quintillion or one quintilliard Mathematics Alexander s Star There are 72 431 714 252 715 638 411 621 302 272 000 000 about 7 24 1034 different positions of Alexander s Star 1036 Edit 1000 000 000 000 000 000 000 000 000 000 000 000 100012 short scale one undecillion long scale one sextillion Physics ke e2 Gm2 the ratio of the electromagnetic to the gravitational forces between two protons is roughly 1036 Mathematics 227 1 1 170 141 183 460 469 231 731 687 303 715 884 105 727 1 7 1038 is the largest known double Mersenne prime Computing 2128 340 282 366 920 938 463 463 374 607 431 768 211 456 3 40282367 1038 the theoretical maximum number of Internet addresses that can be allocated under the IPv6 addressing system one more than the largest value that can be represented by a single precision IEEE floating point value the total number of different Universally Unique Identifiers UUIDs that can be generated Cryptography 2128 340 282 366 920 938 463 463 374 607 431 768 211 456 3 40282367 1038 the total number of different possible keys in the AES 128 bit key space symmetric cipher 1039 Edit 1000 000 000 000 000 000 000 000 000 000 000 000 000 100013 short scale one duodecillion long scale one thousand sextillion or one sextilliard Cosmology The Eddington Dirac number is roughly 1040 Mathematics 97 25 33 5 7 69 720 375 229 712 477 164 533 808 935 312 303 556 800 6 97 1040 is the least common multiple of every integer from 1 to 100 1042 to 10100 Edit 1000 000 000 000 000 000 000 000 000 000 000 000 000 000 100014 short scale one tredecillion long scale one septillion Mathematics 141 2141 1 393 050 634 124 102 232 869 567 034 555 427 371 542 904 833 3 93 1044 is the second Cullen prime Mathematics There are 7 401 196 841 564 901 869 874 093 974 498 574 336 000 000 000 7 4 1045 possible permutations for the Rubik s Revenge 4 4 4 Rubik s Cube lt 4 52 1046 legal chess positions Chess 4 52 1046 is a proven upper bound for the number of legal chess positions 54 Geo 1 33 1050 is the estimated number of atoms in Earth Mathematics 2168 374 144 419 156 711 147 060 143 317 175 368 453 031 918 731 001 856 is the largest known power of two which is not pandigital There is no digit 2 in its decimal representation 55 Mathematics 3106 375 710 212 613 636 260 325 580 163 599 137 907 799 836 383 538 729 is the largest known power of three which is not pandigital There is no digit 4 55 Mathematics 808 017 424 794 512 875 886 459 904 961 710 757 005 754 368 000 000 000 8 08 1053 is the order of the monster group Cryptography 2192 6 277 101 735 386 680 763 835 789 423 207 666 416 102 355 444 464 034 512 896 6 27710174 1057 the total number of different possible keys in the AES 192 bit key space symmetric cipher Cosmology 8 1060 is roughly the number of Planck time intervals since the universe is theorised to have been created in the Big Bang 13 799 0 021 billion years ago 56 Cosmology 1 1063 is Archimedes estimate in The Sand Reckoner of the total number of grains of sand that could fit into the entire cosmos the diameter of which he estimated in stadia to be what we call 2 light years Mathematics Cards 52 80 658 175 170 943 878 571 660 636 856 403 766 975 289 505 440 883 277 824 000 000 000 000 8 07 1067 the number of ways to order the cards in a 52 card deck Mathematics There are 1 01 1068 possible combinations for the Megaminx Mathematics 1 808 422 353 177 349 564 546 512 035 512 530 001 279 481 259 854 248 860 454 348 989 451 026 887 1 81 1072 The largest known prime factor found by ECM factorization as of 2010 update 57 Mathematics There are 282 870 942 277 741 856 536 180 333 107 150 328 293 127 731 985 672 134 721 536 000 000 000 000 000 2 83 1074 possible permutations for the Professor s Cube 5 5 5 Rubik s Cube Cryptography 2256 115 792 089 237 316 195 423 570 985 008 687 907 853 269 984 665 640 564 039 457 584 007 913 129 639 936 1 15792089 1077 the total number of different possible keys in the AES 256 bit key space symmetric cipher Cosmology Various sources estimate the total number of fundamental particles in the observable universe to be within the range of 1080 to 1085 58 59 However these estimates are generally regarded as guesswork Compare the Eddington number the estimated total number of protons in the observable universe Computing 9 999 999 1096 is equal to the largest value that can be represented in the IEEE decimal32 floating point format Computing 69 roughly 1 7112245 1098 is the highest factorial value that can be represented on a calculator with two digits for powers of ten without overflow Mathematics One googol 1 10100 1 followed by one hundred zeros or 10 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 10100 one googol to 101000 Edit 10000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 short scale ten duotrigintillion long scale ten thousand sexdecillion or ten sexdecillard 60 Mathematics There are 157 152 858 401 024 063 281 013 959 519 483 771 508 510 790 313 968 742 344 694 684 829 502 629 887 168 573 442 107 637 760 000 000 000 000 000 000 000 000 1 57 10116 distinguishable permutations of the V Cube 6 6 6 6 Rubik s Cube Chess Shannon number 10120 a lower bound of the game tree complexity of chess Physics 10120 discrepancy between the observed value of the cosmological constant and a naive estimate based on Quantum Field Theory and the Planck energy Physics 8 10120 ratio of the mass energy in the observable universe to the energy of a photon with a wavelength the size of the observable universe Mathematics 19 568 584 333 460 072 587 245 340 037 736 278 982 017 213 829 337 604 336 734 362 294 738 647 777 395 483 196 097 971 852 999 259 921 329 236 506 842 360 439 300 1 96 10121 is the period of primary pretenders History Religion Asaṃkhyeya is a Buddhist name for the number 10140 It is listed in the Avatamsaka Sutra and metaphorically means innumerable in the Sanskrit language of ancient India Xiangqi 10150 an estimation of the game tree complexity of xiangqi Mathematics There are 19 500 551 183 731 307 835 329 126 754 019 748 794 904 992 692 043 434 567 152 132 912 323 232 706 135 469 180 065 278 712 755 853 360 682 328 551 719 137 311 299 993 600 000 000 000 000 000 000 000 000 000 000 000 1 95 10160 distinguishable permutations of the V Cube 7 7 7 7 Rubik s Cube 2 08 10170 legal Go positions Go There are 208 168 199 381 979 984 699 478 633 344 862 770 286 522 453 884 530 548 425 639 456 820 927 419 612 738 015 378 525 648 451 698 519 643 907 259 916 015 628 128 546 089 888 314 427 129 715 319 317 557 736 620 397 247 064 840 935 2 08 10170 legal positions in the game of Go See Go and mathematics Economics The annualized rate of the hyperinflation in Hungary in 1946 was estimated to be 2 9 10177 61 It was the most extreme case of hyperinflation ever recorded Board games 3 457 10181 number of ways to arrange the tiles in English Scrabble on a standard 15 by 15 Scrabble board Physics 10186 approximate number of Planck volumes in the observable universe Shogi 10226 an estimation of the game tree complexity of shogi Physics 7 10245 approximate spacetime volume of the history of the observable universe in Planck units 62 Computing 1 797 693 134 862 315 807 10308 is approximately equal to the largest value that can be represented in the IEEE double precision floating point format Computing 10 10 15 10384 is equal to the largest value that can be represented in the IEEE decimal64 floating point format Mathematics 997 31 25 34 54 7 7 128 865 274 665 093 053 166 384 155 714 272 920 668 358 861 885 893 040 452 001 991 154 324 087 581 111 499 476 444 151 913 871 586 911 717 817 019 575 256 512 980 264 067 621 009 251 465 871 004 305 131 072 686 268 143 200 196 609 974 862 745 937 188 343 705 015 434 452 523 739 745 298 963 145 674 982 128 236 956 232 823 794 011 068 809 262 317 708 861 979 540 791 247 754 558 049 326 475 737 829 923 352 751 796 735 248 042 463 638 051 137 034 331 214 781 746 850 878 453 485 678 021 888 075 373 249 921 995 672 056 932 029 099 390 891 687 487 672 697 950 931 603 520 000 7 13 10432 is the least common multiple of every integer from 1 to 1000 101000 to 1010100 one googolplex EditMathematics There are approximately 1 869 104099 distinguishable permutations of the world s largest Rubik s cube 33 33 33 Computing 1 189 731 495 357 231 765 05 104932 is approximately equal to the largest value that can be represented in the IEEE 80 bit x86 extended precision floating point format Computing 1 189 731 495 357 231 765 085 759 326 628 007 0 104932 is approximately equal to the largest value that can be represented in the IEEE quadruple precision floating point format Computing 10 10 33 106144 is equal to the largest value that can be represented in the IEEE decimal128 floating point format Computing 1010 000 1 is equal to the largest value that can be represented in Windows Phone s calculator Mathematics 26384405 44052638 is a 15 071 digit Leyland prime the largest which has been proven as of 2010 update 63 Mathematics 3 756 801 695 685 2666 669 1 are 200 700 digit twin primes the largest known as of December 2011 update 64 Mathematics 18 543 637 900 515 2666 667 1 is a 200 701 digit Sophie Germain prime the largest known as of April 2012 update 65 Mathematics approximately 7 76 10206 544 cattle in the smallest herd which satisfies the conditions of Archimedes s cattle problem Mathematics 10474 500 999 10237 249 1 is a 474 501 digit palindromic prime the largest known as of April 2021 update 66 Mathematics 2 996 863 034 895 21 290 000 1 are 388 342 digit twin primes the largest known as of April 2021 update 67 Mathematics 1 098 133 1 is a 476 311 digit primorial prime the largest known as of March 2012 update 68 Mathematics 208 003 1 is a 1 015 843 digit factorial prime the largest known as of April 2021 update 69 Mathematics Literature Jorge Luis Borges Library of Babel contains at least 251 312 000 1 956 101 834 097 books this is a lower bound 70 Mathematics 4 721 119 849 1 is the smallest prime of the form 4 72n 1 71 Archived 2021 04 12 at the Wayback Machine Mathematics 215 135 397 1 3 is a 4 556 209 digit Wagstaff probable prime the largest known as of June 2021 update Mathematics 1 059 0941 048 576 1 is a 6 317 602 digit Generalized Fermat prime the largest known as of April 2021 update 72 Mathematics 108 177 207 1 9 is a 8 177 207 digit probable prime the largest known as of 8 May 2021 update 73 Mathematics 10 223 231 172 165 1 is a 9 383 761 digit Proth prime the largest known Proth prime 74 and non Mersenne prime as of 2021 update 75 Digit growth in the largest known prime Mathematics 282 589 933 1 is a 24 862 048 digit Mersenne prime the largest known prime of any kind as of 2020 update 75 Mathematics 282 589 932 282 589 933 1 is a 49 724 095 digit perfect number the largest known as of 2020 76 Mathematics History 108 1016 largest named number in Archimedes Sand Reckoner Mathematics 10googol 10 10 100 displaystyle 10 10 100 a googolplex A number 1 followed by 1 googol zeros Carl Sagan has estimated that 1 googolplex fully written out would not fit in the observable universe because of its size while also noting that one could also write the number as 1010100 77 Larger than 1010100 Edit One googolplex 10googol short scale googolplex long scale googolplex Mathematics Literature The number of different ways in which the books in Jorge Luis Borges Library of Babel can be arranged is approximately 10 10 1 834 102 displaystyle 10 10 1 834 102 the factorial of the number of books in the Library of Babel Cosmology In chaotic inflation theory proposed by physicist Andrei Linde our universe is one of many other universes with different physical constants that originated as part of our local section of the multiverse owing to a vacuum that had not decayed to its ground state According to Linde and Vanchurin the total number of these universes is about 10 10 10 000 000 displaystyle 10 10 10 000 000 78 Mathematics 10 10 10 34 displaystyle 10 10 10 34 order of magnitude of an upper bound that occurred in a proof of Skewes this was later estimated to be closer to 1 397 10316 Cosmology The estimated number of Planck time units for quantum fluctuations and tunnelling to generate a new Big Bang is estimated to be 10 10 10 56 displaystyle 10 10 10 56 Mathematics 10 10 10 100 displaystyle 10 10 10 100 a number in the googol family called a googolplexplex googolplexian or googolduplex 1 followed by a googolplex zeros or 10googolplex Mathematics 10 10 10 963 displaystyle 10 10 10 963 order of magnitude of another upper bound in a proof of Skewes Mathematics Steinhaus mega lies between 10 4 257 and 10 4 258 where a n b is hyperoperation Mathematics Moser s number 2 in a mega gon in Steinhaus Moser notation is approximately equal to 10 10 4 257 10 the last four digits are 1056 Mathematics Graham s number the last ten digits of which are 2464195387 equals 3 3 3 3 3 3 6 3 2 3 2 3 3 2 3 2 3 with 64 levels of brackets Arises as an upper bound solution to a problem in Ramsey theory Representation in powers of 10 would be impractical the number of 10s in the power tower 10 10 10 displaystyle 10 10 10 would be virtually indistinguishable from the number itself Mathematics TREE 3 appears in relation to a theorem on trees in graph theory Representation of the number is difficult but one weak lower bound is AA 187196 1 where A n is a version of the Ackermann function Mathematics SSCG 3 appears in relation to the Robertson Seymour theorem Known to be greater than both TREE 3 and the TREE function nested inside itself TREE 3 times with TREE 3 at the bottom Mathematics Transcendental integers a set of numbers defined in 2000 by Harvey Friedman appears in proof theory 79 See also Edit Mathematics portal Conway chained arrow notation Encyclopedic size comparisons on Wikipedia Fast growing hierarchy Large numbers List of numbers Mathematical constant Names of large numbers Names of small numbers Power of 10References Edit Kittel Charles and Herbert Kroemer 1980 Thermal Physics 2nd ed W H Freeman Company p 53 ISBN 978 0 7167 1088 2 There are around 130 000 letters and 199 749 total characters in Hamlet 26 letters 2 for capitalization 12 for punctuation characters 64 64199749 10360 783 Calculated 365 365365 1 455 10 157 Robert Matthews What are the odds of shuffling a deck of cards into the right order Science Focus Retrieved December 10 2018 www BridgeHands com Sales Probabilities Miscellaneous Bridge Odds Archived from the original on 2009 10 03 Walraven P L Lebeek H J 1963 Foveal Sensitivity of the Human Eye in the Near Infrared J Opt Soc Am 53 6 765 766 doi 10 1364 josa 53 000765 PMID 13998626 Courtney Taylor The Probability of Being Dealt a Royal Flush in Poker ThoughtCo Retrieved December 10 2018 Mason W S Seal G Summers J 1980 12 01 Virus of Pekin ducks with structural and biological relatedness to human hepatitis B virus Journal of Virology 36 3 829 836 doi 10 1128 JVI 36 3 829 836 1980 ISSN 0022 538X PMC 353710 PMID 7463557 Butterflies Smithsonian Institution Retrieved 2020 11 27 a b Homo sapiens Ensembl genome browser 87 www ensembl org Archived from the original on 2017 05 25 Retrieved 2017 01 28 Pi World Ranking List Archived from the original on 2017 06 29 Sloane N J A ed Sequence A283670 The On Line Encyclopedia of Integer Sequences OEIS Foundation Retrieved 2017 03 15 Kew report makes new tally for number of world s plants BBC News 2016 05 09 Retrieved 2020 11 27 Estimate of flowering plant species to be cut by 600 000 phys org Retrieved 2020 11 28 Jacob How Many Video Games Exist Gaming Shift Retrieved 2020 11 28 Kibrik A E 2001 Archi Caucasian Daghestanian The Handbook of Morphology Blackwell pg 468 Queen Tim 26 March 2022 How Many YouTube Channels Are There timqueen Retrieved 2022 03 28 Plouffe s Inverter Archived 2005 08 12 at the Wayback Machine How many cars are there in the world carsguide 6 August 2018 Retrieved 18 May 2020 How many Gmail user accounts are there in the world blog gsmart in Retrieved 2020 11 28 Christof Baron 2015 Facebook users worldwide 2016 Statista Statista statista com Archived from the original on 2016 09 09 a b Earth microbes on the moon Science Nasa 1 September 1998 Archived from the original on 23 March 2010 Retrieved 2 November 2010 How Many Planets are in the Milky Way Amount Location amp Key Facts The Nine Planets Retrieved 2020 11 28 January 2013 Space com Staff 02 2 January 2013 100 Billion Alien Planets Fill Our Milky Way Galaxy Study Space com Retrieved 2020 11 28 there was to our knowledge no actual direct estimate of numbers of cells or of neurons in the entire human brain to be cited until 2009 A reasonable approximation was provided by Williams and Herrup 1988 from the compilation of partial numbers in the literature These authors estimated the number of neurons in the human brain at about 85 billion With more recent estimates of 21 26 billion neurons in the cerebral cortex Pelvig et al 2008 and 101 billion neurons in the cerebellum Andersen et al 1992 however the total number of neurons in the human brain would increase to over 120 billion neurons Herculano Houzel Suzana 2009 The human brain in numbers a linearly scaled up primate brain Front Hum Neurosci 3 31 doi 10 3389 neuro 09 031 2009 PMC 2776484 PMID 19915731 Kapitsa Sergei P 1996 The phenomenological theory of world population growth Physics Uspekhi 39 1 57 71 Bibcode 1996PhyU 39 57K doi 10 1070 pu1996v039n01abeh000127 citing the range of 80 to 150 billion citing K M Weiss Human Biology 56637 1984 and N Keyfitz Applied Mathematical Demography New York Wiley 1977 C Haub How Many People Have Ever Lived on Earth Population Today 23 2 pp 5 6 cited an estimate of 105 billion births since 50 000 BC updated to 107 billion as of 2011 in Haub Carl October 2011 How Many People Have Ever Lived on Earth Population Reference Bureau Archived from the original on April 24 2013 Retrieved April 29 2013 due to the high infant mortality in pre modern times close to half of this number would not have lived past infancy Elizabeth Howell How Many Stars Are in the Milky Way Archived 2016 05 28 at the Wayback Machine Space com 21 May 2014 citing estimates from 100 to 400 billion Hollis Morgan 13 October 2016 A universe of two trillion galaxies The Royal Astronomical Society Retrieved 9 November 2017 How Many Cells Are in the Human Body Types Production Loss More Healthline 2018 07 16 Retrieved 2020 09 25 Jonathan Amos 3 September 2015 Earth s trees number three trillion BBC Archived from the original on 6 June 2017 Xavier Gourdon October 2004 Computation of zeros of the Zeta function Archived from the original on 15 January 2011 Retrieved 2 November 2010 Haruka Iwao Emma 14 March 2019 Pi in the sky Calculating a record breaking 31 4 trillion digits of Archimedes constant on Google Cloud Archived from the original on 19 October 2019 Retrieved 12 April 2019 Koch Christof Biophysics of computation information processing in single neurons Oxford university press 2004 Savage D C 1977 Microbial Ecology of the Gastrointestinal Tract Annual Review of Microbiology 31 107 33 doi 10 1146 annurev mi 31 100177 000543 PMID 334036 Berg R 1996 The indigenous gastrointestinal microflora Trends in Microbiology 4 11 430 5 doi 10 1016 0966 842X 96 10057 3 PMID 8950812 Bert Holldobler and E O Wilson The Superorganism The Beauty Elegance and Strangeness of Insect Societies New York 2009 W W Norton Page 5 Silva Tomas Oliveira e Goldbach conjecture verification Retrieved 11 April 2021 60th Birthday of Microelectronics Industry Semiconductor Industry Association 13 December 2007 Archived from the original on 13 October 2008 Retrieved 2 November 2010 Sequence A131646 Archived 2011 09 01 at the Wayback Machine in The On Line Encyclopedia of Integer Sequences Smithsonian Encyclopedia Number of Insects Archived 2016 12 28 at the Wayback Machine Prepared by the Department of Systematic Biology Entomology Section National Museum of Natural History in cooperation with Public Inquiry Services Smithsonian Institution Accessed 27 December 2016 Facts about numbers of insects Puts the number of individual insects on Earth at about 10 quintillion 1019 Ivan Moscovich 1000 playthinks puzzles paradoxes illusions amp games Workman Pub 2001 ISBN 0 7611 1826 8 Scores of Zimbabwe farms seized BBC 23 February 2009 Archived from the original on 1 March 2009 Retrieved 14 March 2009 To see the Universe in a Grain of Taranaki Sand Archived from the original on 2012 06 30 Intel predicts 1 200 quintillion transistors in the world by 2015 Archived from the original on 2013 04 05 How Many Transistors Have Ever Shipped Forbes Forbes Archived from the original on 30 June 2015 Retrieved 1 September 2015 Sudoku enumeration Archived from the original on 2006 10 06 Star count ANU astronomer makes best yet The Australian National University 17 July 2003 Archived from the original on July 24 2005 Retrieved 2 November 2010 Astronomers count the stars BBC News July 22 2003 Archived from the original on August 13 2006 Retrieved 2006 07 18 trillions of earths could be orbiting 300 sextillion stars van Dokkum Pieter G Charlie Conroy 2010 A substantial population of low mass stars in luminous elliptical galaxies Nature 468 7326 940 942 arXiv 1009 5992 Bibcode 2010Natur 468 940V doi 10 1038 nature09578 PMID 21124316 S2CID 205222998 How many stars Archived 2013 01 22 at the Wayback Machine see mass of the observable universe sequence A007377 in the OEIS Questions and Answers How many atoms are in the human body Archived from the original on 2003 10 06 William B Whitman David C Coleman William J Wiebe 1998 Prokaryotes The unseen majority Proceedings of the National Academy of Sciences of the United States of America 95 12 6578 6583 Bibcode 1998PNAS 95 6578W doi 10 1073 pnas 95 12 6578 PMC 33863 PMID 9618454 sequence A070177 in the OEIS sequence A035064 in the OEIS John Tromp 2010 John s Chess Playground Archived from the original on 2014 06 01 a b Merickel James G ed Sequence A217379 Numbers having non pandigital power of record size excludes multiples of 10 The On Line Encyclopedia of Integer Sequences OEIS Foundation Retrieved 2021 03 17 Planck Collaboration 2016 Planck 2015 results XIII Cosmological parameters See Table 4 on page 31 of pfd Astronomy amp Astrophysics 594 A13 arXiv 1502 01589 Bibcode 2016A amp A 594A 13P doi 10 1051 0004 6361 201525830 S2CID 119262962 Paul Zimmermann 50 largest factors found by ECM Archived 2009 02 20 at the Wayback Machine Matthew Champion Re How many atoms make up the universe Archived 2012 05 11 at the Wayback Machine 1998 WMAP Content of the Universe Archived 2016 07 26 at the Wayback Machine Map gsfc nasa gov 2010 04 16 Retrieved on 2011 05 01 Names of large and small numbers bmanolov free fr Miscellaneous pages by Borislav Manolov Archived from the original on 2016 09 30 Hanke Steve Krus Nicholas Hyperinflation Table PDF Retrieved 26 March 2021 Richard Eldridge Chris Caldwell The Top Twenty Elliptic Curve Primality Proof at The Prime Pages Chris Caldwell The Top Twenty Twin Primes Archived 2013 01 27 at the Wayback Machine at The Prime Pages Chris Caldwell The Top Twenty Sophie Germain p at The Prime Pages Chris Caldwell The Top Twenty Palindrome at The Prime Pages Chris Caldwell The Top Twenty Twin at The Prime Pages PrimeGrid s Primorial Prime Search Archived 2013 11 26 at the Wayback Machine Chris Caldwell The Top Twenty Factorial primes Archived 2013 04 10 at the Wayback Machine at The Prime Pages From the third paragraph of the story Each book contains 410 pages each page 40 lines each line about 80 black letters That makes 410 x 40 x 80 1 312 000 characters The fifth paragraph tells us that there are 25 orthographic symbols including spaces and punctuation The magnitude of the resulting number is found by taking logarithms However this calculation only gives a lower bound on the number of books as it does not take into account variations in the titles the narrator does not specify a limit on the number of characters on the spine For further discussion of this see Bloch William Goldbloom The Unimaginable Mathematics of Borges Library of Babel Oxford University Press Oxford 2008 Gary Barnes Riesel conjectures and proofs Chris Caldwell The Top Twenty Generalized Fermat Archived 2021 03 28 at the Wayback Machine at The Prime Pages PRP records Chris Caldwell The Top Twenty Proth Archived 2020 11 24 at the Wayback Machine at The Prime Pages a b Chris Caldwell The Top Twenty Largest Known Primes at The Prime Pages Chris Caldwell Mersenne Primes History Theorems and Lists at The Prime Pages asantos 15 December 2007 Googol and Googolplex by Carl Sagan Archived from the original on 2021 12 12 via YouTube Zyga Lisa Physicists Calculate Number of Parallel Universes Archived 2011 06 06 at the Wayback Machine PhysOrg 16 October 2009 H Friedman Enormous integers in real life accessed 2021 02 06 External links EditSeth Lloyd s paper Computational capacity of the universe provides a number of interesting dimensionless quantities Notable properties of specific numbers Clewett James 4 294 967 296 The Internet is Full Numberphile Brady Haran Archived from the original on 2013 05 24 Retrieved 2013 04 06 Retrieved from https en wikipedia org w index php title Orders of magnitude numbers amp oldid 1093983900 1012, wikipedia, wiki, book,

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