18-04-2010, 10:00 PM
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 | | | Join Date: Sep 2007 Location: near Govt College of Science Multan Pakistan
Posts: 9,693
Contact Number: Removed Program / Discipline: BSIT Class Roll Number: 07-15 | |
 Number of zeros
Number of zeros
| U.S. & scientific community
| Other countries
| 3
| thousand
| thousand
| 6
| million
| million
| 9
| billion
| 1000 million (1 milliard)
| 12
| trillion
| billion
| 15
| quadrillion
| 1000 billion
| 18
| quintillion
| trillion
| 21
| sextillion
| 1000 trillion
| 24
| septillion
| quadrillion
| 27
| octillion
| 1000 quadrillion
| 30
| nonillion
| quintillion
| 33
| decillion
| 1000 quintillion
| 36
| undecillion
| sextillion
| 39
| duodecillion
| 1000 sextillion
| 42
| tredecillion
| septillion
| 45
| quattuordecillion
| 1000 septillion
| 48
| quindecillion
| octillion
| 51
| sexdecillion
| 1000 octillion
| 54
| septendecillion
| nonillion
| 57
| octodecillion
| 1000 nonillion
| 60
| novemdecillion
| decillion
| 63
| vigintillion
| 1000 decillion
| 66-120
|
| undecillion - vigintillion
| 303
| centillion
|
| 600
|
| centillion
| Addendum: There are other big numbers with names. A zillion has come to mean an arbitrary or unknown large number. A googol is 10^100. A googolplex is 10^googol (10^10^10^2) . This number is too large to write here without exponents. Skewes' number (gesundheit) is 10^10^10^34 was used as an upper bound in a mathematical proof. Recently 10^10^10^10^ 10^7 was used in a proof. The googolplex has given rise to the n-plex notation: n-plex is 10^n. n-minex is 10^-n. Donald Knuth invented arrow notation, where m^n (^ is an up arrow) is the regular m^n. m^^n is m^m^m^m...^m, with n up arrows. m^^^n is m^^m^^m...^^ m, with n ^^s. According to The Book of Numbers by J.H.Conway and R.K.Guy, chained arrow notation is the following enhancement: a^^^^^b is written as a>b>5, where > is a right arrow. |