Googol - wikipedia Googol Not to be confused with Google or Nikolai Gogol. A googol is the large number 10. In decimal notation, it is written as the digit 1 followed by one hundred zeroes : 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. Contents 1 Concept 2 Size 3 Properties 4 Cultural impact 5 See also 6 References 7 External links Concept The term was coined in 1920 by 9 - year - old Milton Sirotta ( 1911 -- 1981 ), nephew of U.S. mathematician Edward Kasner. Kasner popularized the concept in his 1940 book Mathematics and the Imagination. Other names for googol include ten duotrigintillion on the short scale, ten thousand sexdecillion on the long scale, or ten sexdecilliard on the Peletier long scale. Size A googol has no special significance in mathematics. However, it is useful when comparing with other very large quantities such as the number of subatomic particles in the visible universe or the number of hypothetical possibilities in a chess game. Kasner used it to illustrate the difference between an unimaginably large number and infinity, and in this role it is sometimes used in teaching mathematics. To give a sense of how big a googol really is, the mass of an electron, just under 6970100000000000000 ♠ 10 kg, can be compared to the mass of the visible universe, estimated at between 7050100000000000000 ♠ 10 and 7060100000000000000 ♠ 10 kg. It is a ratio in the order of about 10 to 10, or only about one ten - billionth of a googol ( 0.00000001 % of a googol ). Carl Sagan pointed out that the total number of elementary particles in the universe is around 10 ( the Eddington number ) and that if the whole universe were packed with neutrons so that there would be no empty space anywhere, there would be around 10. He also noted the similarity of the second calculation to that of Archimedes in The Sand Reckoner. By Archimedes 's calculation, the universe of Aristarchus ( roughly 2 light years in diameter ) fully packed with sand, would contain 10 grains. If the much larger observable universe of today were filled with sand, it would still only equal 10 grains. Another 100,000 observable universes filled with sand would be necessary to make a googol. The decay time for a supermassive black hole of roughly 1 galaxy - mass ( 10 solar masses ) due to Hawking radiation is on the order of 10 years. Therefore, the heat death of an expanding universe is lower - bounded to occur a googol years in the future. Properties A googol is approximately 70 ! ( factorial of 70 ). Using an integral, binary numeral system, one would need 333 bits to represent a googol, i.e., 1 googol ≈ 2, or exactly 2 ( 100 / l o g 10 2 ) ( displaystyle 2 ^ ( ( 100 / mathrm ( log ) _ ( 10 ) 2 ) ) ). However, a googol is well within the maximum bounds of an IEEE 754 double - precision floating point type. Using modular arithmetic, the series of residues ( mod n ) of one googol is found : 0, 0, 1, 0, 0, 4, 4, 0, 1, 0, 1, 4, 3, 4, 10, 0, 4, 10, 9, 0, 4, 12, 13, 16, 0, 16, 10, 4, 16, 10, 5, 0, 1, 4, 25, 28, 10, 28, 16, 0, 1, 4, 31, 12, 10, 36, 27, 16, 11, 0,... ( sequence A066298 in the OEIS ) Cultural impact Widespread sounding of the word occurs through the name of the company Google, with the name `` Google '' being an accidental misspelling of `` googol '' by the company 's founders, which was picked to signify that the search engine was intended to provide large quantities of information. In 2004, family members of Kasner, who had inherited the right to his book, were considering suing Google for their use of the term googol ; however, no suit was ever filed. Since October 2009, Google has been assigning domain names to its servers under the domain `` 1e100.net '', the scientific notation for 1 googol, in order to provide a single domain to identify servers across the Google network. The word is notable for being the subject of the £ 1 million question in a 2001 episode of the British quiz show Who Wants to Be a Millionaire ?, when contestant Charles Ingram cheated his way through the show with the help of an accomplice. See also Googolplex Graham 's number Skewes ' number Infinity Names of large numbers Only a Trillion References Jump up ^ Bialik, Carl ( June 14, 2004 ). `` There Could Be No Google Without Edward Kasner ''. The Wall Street Journal Online. Archived from the original on November 30, 2016. ( retrieved March 17, 2015 ) Jump up ^ Kasner, Edward ; Newman, James R. ( 1940 ). Mathematics and the Imagination. Simon and Schuster, New York. ISBN 0 - 486 - 41703 - 4. Archived from the original on 2014 - 07 - 03. The relevant passage about the googol and googolplex, attributing both of these names to Kasner 's nine - year - old nephew, is available in James R. Newman, ed. ( 2000 ) ( 1956 ). The world of mathematics, volume 3. Mineola, New York : Dover Publications. pp. 2007 -- 2010. ISBN 978 - 0 - 486 - 41151 - 4. Jump up ^ Elert, Glenn ; et al. `` Mass of the Universe ''. Archived from the original on 2017 - 07 - 23. Jump up ^ Sagan, Carl ( 1981 ). Cosmos. Book Club Associates. pp. 220 -- 221. Jump up ^ Particle emission rates from a black hole : Massless particles from an uncharged, nonrotating hole, Don N. Page, Physical Review D 13 ( 1976 ), pp. 198 -- 206. doi : 10.1103 / PhysRevD. 13.198. See in particular equation ( 27 ). Jump up ^ Koller, David ( January 2004 ). `` Origin of the name `` Google '' ``. Stanford University. Archived from the original on July 4, 2012. Retrieved July 4, 2012. Jump up ^ `` Google ! Beta website ''. Google, Inc. Archived from the original on February 21, 1999. Retrieved October 12, 2010. Jump up ^ `` Have your Google people talk to my ` googol ' people ''. Archived from the original on 2014 - 09 - 04. Jump up ^ Cade Metz ( 8 February 2010 ). `` Google doppelgänger casts riddle over interwebs ''. The Register. Archived from the original on 3 March 2016. Retrieved 30 December 2015. Jump up ^ `` What is 1e100.net ? ''. Google. Archived from the original on 9 January 2016. Retrieved 30 December 2015. Jump up ^ Falk, Quentin ; Falk, Ben ( 2005 ), `` A Code and a Cough : Who Wants to Be a Millionaire ? ( 1998 -- ) '', Television 's Strangest Moments : Extraordinary But True Tales from the History of Television, Franz Steiner Verlag, pp. 245 -- 246, ISBN 9781861058744. External links Weisstein, Eric W. `` Googol ''. MathWorld. googol at PlanetMath.org. Padilla, Tony ; Symonds, Ria. `` Googol and Googolplex ''. Numberphile. Brady Haran. Look up googol in Wiktionary, the free dictionary. Large numbers Examples in numerical order Thousand Ten thousand Hundred thousand Million Ten million Hundred million Billion Trillion Quadrillion Quintillion Sextillion Septillion Octillion Nonillion Decillion Googol Googolplex Skewes 's number Googolduplex Moser 's number Graham 's number TREE ( 3 ) SSCG ( 3 ) Rayo 's number Transfinite numbers Expression methods Notations Knuth 's up - arrow notation Conway chained arrow notation Steinhaus -- Moser notation Operators Hyperoperation Tetration Pentation Ackermann function Bowers 's operators Grzegorczyk hierarchy Related articles Infinitesimal Number systems Number names Orders of magnitude List of notable numbers Indefinite and fictitious numbers Extended real number line Power of two Power of 10 Long and short scales Titanic prime Gigantic prime Megaprime Largest known prime number Names History Retrieved from `` https://en.wikipedia.org/w/index.php?title=Googol&oldid=864185574 '' Categories : Large integers Integers Units of amount Hidden categories : Wikipedia pages semi-protected against vandalism Talk View source Contents About Wikipedia অসমীয়া Asturianu Azərbaycanca বাংলা Беларуская ( тарашкевіца ) ‎ Български Bosanski Brezhoneg Català Čeština Dansk Deutsch Eesti Ελληνικά Español Esperanto Euskara فارسی Français ગુજરાતી 한국어 Հայերեն Hrvatski Bahasa Indonesia Íslenska Italiano עברית ಕನ್ನಡ Қазақша Kurdî Latina Latviešu Lëtzebuergesch Lietuvių Magyar Македонски മലയാളം Bahasa Melayu Nederlands 日本 語 Norsk Norsk nynorsk Polski Português Română Русский Scots Sicilianu Simple English سنڌي Slovenčina Slovenščina کوردی Српски / srpski Suomi Svenska Tagalog தமிழ் తెలుగు ไทย Türkçe Українська Tiếng Việt 吴语 ייִדיש 粵語 Zazaki 中文 60 more Edit links This page was last edited on 15 October 2018, at 17 : 10 ( UTC ). 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Question: how many zeros does the number google have
Answer: one hundred zeroes