| 词条 | Draft:18,446,744,073,709,551,615 |
| 释义 |
The number 18,446,744,073,709,551,615 is the largest 64-bit integer, equal to 2{{sup|64}} − 1. In MathematicsIt is the 64th Mersenne Number.[1] It is also known as the 'chessboard number', the total number of grains in the Wheat_and_chessboard_problem. In ComputingThe number 18,446,744,073,709,551,615, equivalent to the hexadecimal value {{nowrap|FFFF,FFFF,FFFF,FFFF{{sub|16}}}}, is the maximum value for a 64-bit unsigned integer in computing, called UINT64_MAX,[2][3] ULLONG_MAX, and is SIZE_MAX on 64-bit architectures. See also
References1. ^{{cite web |title=Mersenne Number |url=http://mathworld.wolfram.com/MersenneNumber.html |website=Wolfram Mathworld |accessdate=13 February 2019 |ref=mathworld |archive-url=http://web.archive.org/web/20181215172323/http://mathworld.wolfram.com/MersenneNumber.html |archive-date=2018-12-15 |dead-url=no }} {{DEFAULTSORT:18446744073709551615}}Category:Integers2. ^{{cite web |title=UInt64.MaxValue |url=https://docs.microsoft.com/en-us/dotnet/api/system.uint64.maxvalue?view=netframework-4.7.2 |publisher=Microsoft |accessdate=13 February 2019 |archive-url=http://web.archive.org/web/20190126203438/https://docs.microsoft.com/en-us/dotnet/api/system.uint64.maxvalue?view=netframework-4.7.2 |archive-date=2019-01-26 |dead-url=no }} 3. ^{{cite web |title=A051179 - a(n) = 2^(2^n) - 1 |url=http://oeis.org/A051179 |website=On-Line Encyclopedia of Integer Sequences |accessdate=14 February 2019 |archive-url=http://web.archive.org/web/20180525131448/http://oeis.org/A051179 |archive-date=2018-05-25 |dead-url=no }} |
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