81373171612008

Names of 81373171612008

• Cardinal: 81373171612008 can be written as Eighty-one trillion, three hundred seventy-three billion, one hundred seventy-one million, six hundred twelve thousand and eight.

Scientific notation

• Scientific notation: 8.1373171612008 × 10¹³

Factors of 81373171612008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 269

Divisors of 81373171612008

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 12 24 83 166 181 249 332 362 498 543 664 724 996 1086 1448 1992 2172 4344 6889 13778 15023 20667 27556 30046 32761 41334 45069 55112 60092 65522 82668 90138 98283 120184 131044 165336 180276 196566 262088 360552 393132 571787 786264 1143574 1246909 1715361 2287148 2493818 2719163 3430722 3740727 4574296 4987636 5438326 5929741 6861444 7481454 8157489 9975272 10876652 11859482 13722888 14962908 16314978 17789223 21753304 23718964 29925816 32629956 35578446 47437928 65259912 71156892 103493447 142313784 206986894 225690529 310480341 413973788 451381058 492168503 620960682 677071587 827947576 902762116 984337006 1241921364 1354143174 1476505509 1805524232 1968674012 2483842728 2708286348 2953011018 3937348024 5416572696 5906022036 11812044072 18732313907 37464627814 40849985749 56196941721 74929255628 81699971498 112393883442 122549957247 149858511256 163399942996 224787766884 245099914494 326799885992 449575533768 490199828988 980399657976 3390548817167 6781097634334 10171646451501 13562195268668 20343292903002 27124390537336 40686585806004 81373171612008
• Sum of all divisors σ(n): 207057779510400
• Sum of proper divisors (its aliquot sum) s(n): 125684607898392
• 81373171612008 is an abundant number, because the sum of its proper divisors (125684607898392) is greater than itself. Its abundance is 44311436286384

Bases of 81373171612008

• Binary: 10010100000001000101010111111001111100101101000₂
• Hexadecimal: 0x4A022AFCF968
• Base-36: SUEBHDUNC

Squares and roots of 81373171612008

• 81373171612008 squared (81373171612008²) is 6621593058197304649289792064
• 81373171612008 cubed (81373171612008³) is 538820028269570147326969301980862005504512
• The square root of 81373171612008 is 9020707.9329733317
• The cube root of 81373171612008 is 43333.8305894563

Scales and comparisons

• 81,373,171,612,008 seconds is equal to 2,587,415 years, 7 weeks, 6 days, 21 hours, 6 minutes, 48 seconds.
• To count from 1 to 81,373,171,612,008 would take you about six million, four hundred sixty-eight thousand, five hundred thirty-seven years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 81373171612008 cubic inches would be around 3611.2 feet tall.

Recreational maths with 81373171612008

• 81373171612008 backwards is 80021617137318
• The number of decimal digits it has is: 14
• The sum of 81373171612008's digits is 48
• More coming soon!