81329437645101

Names of 81329437645101

• Cardinal: 81329437645101 can be written as Eighty-one trillion, three hundred twenty-nine billion, four hundred thirty-seven million, six hundred forty-five thousand, one hundred one.

Scientific notation

• Scientific notation: 8.1329437645101 × 10¹³

Factors of 81329437645101

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 187

Divisors of 81329437645101

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 27 53 81 131 159 243 393 477 1179 1431 2809 3537 4293 6943 8427 10611 12879 17161 20829 25281 31833 51483 62487 75843 148877 154449 187461 227529 367979 446631 463347 562383 682587 909533 1103937 1339893 1390041 1687149 2248091 2728599 3311811 4019679 4170123 6744273 8185797 9935433 12059037 19502887 20232819 24557391 29806299 36177111 48205249 58508661 60698457 73672173 89418897 119148823 144615747 175525983 182095371 221016519 357446469 433847241 526577949 546286113 1072339407 1301541723 1579733847 2554878197 3217018221 3904625169 4739201541 6314887619 7664634591 9651054663 11713875507 18944662857 22993903773 28953163989 56833988571 68981711319 170501965713 206945133957 334689043807 511505897139 620835401871 1004067131421 1534517691417 3012201394263 9036604182789 27109812548367 81329437645101
• Sum of all divisors σ(n): 125124770010240
• Sum of proper divisors (its aliquot sum) s(n): 43795332365139
• 81329437645101 is a deficient number, because the sum of its proper divisors (43795332365139) is less than itself. Its deficiency is 37534105279962

Bases of 81329437645101

• Binary: 10010011111011111111100001111011001100100101101₂
• Hexadecimal: 0x49F7FC3D992D
• Base-36: STU87B5T9

Squares and roots of 81329437645101

• 81329437645101 squared (81329437645101²) is 6614477427668371692429300201
• 81329437645101 cubed (81329437645101³) is 537951729508482895518306394809150825965301
• The square root of 81329437645101 is 9018283.5198889705
• The cube root of 81329437645101 is 43326.0659503481

Scales and comparisons

• 81,329,437,645,101 seconds is equal to 2,586,024 years, 28 weeks, 3 days, 16 hours, 58 minutes, 21 seconds.
• To count from 1 to 81,329,437,645,101 would take you about six million, four hundred sixty-five thousand and sixty-one 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 81329437645101 cubic inches would be around 3610.5 feet tall.

Recreational maths with 81329437645101

• 81329437645101 backwards is 10154673492318
• The number of decimal digits it has is: 14
• The sum of 81329437645101's digits is 54
• More coming soon!