81083371824

Names of 81083371824

• Cardinal: 81083371824 can be written as Eighty-one billion, eighty-three million, three hundred seventy-one thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 8.1083371824 × 10¹⁰

Factors of 81083371824

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 6187706

Divisors of 81083371824

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 36 39 42 48 52 56 63 72 78 84 91 104 112 117 126 144 156 168 182 208 234 252 273 312 336 364 468 504 546 624 728 819 936 1008 1092 1456 1638 1872 2184 3276 4368 6552 13104 6187681 12375362 18563043 24750724 37126086 43313767 49501448 55689129 74252172 80439853 86627534 99002896 111378258 129941301 148504344 160879706 173255068 222756516 241319559 259882602 297008688 321759412 346510136 389823903 445513032 482639118 519765204 563078971 643518824 693020272 723958677 779647806 891026064 965278236 1039530408 1126157942 1287037648 1447917354 1559295612 1689236913 1930556472 2079060816 2252315884 2895834708 3118591224 3378473826 3861112944 4504631768 5067710739 5791669416 6237182448 6756947652 9009263536 10135421478 11583338832 13513895304 20270842956 27027790608 40541685912 81083371824
• Sum of all divisors σ(n): 279287214752
• Sum of proper divisors (its aliquot sum) s(n): 198203842928
• 81083371824 is an abundant number, because the sum of its proper divisors (198203842928) is greater than itself. Its abundance is 117120471104

Bases of 81083371824

• Binary: 1001011100000111100100001000100110000₂
• Hexadecimal: 0x12E0F21130
• Base-36: 118YY240

Squares and roots of 81083371824

• 81083371824 squared (81083371824²) is 6574513186349037086976
• 81083371824 cubed (81083371824³) is 533083697250529975167640835764224
• The square root of 81083371824 is 284751.4211097111
• The cube root of 81083371824 is 4328.2326830985

Scales and comparisons

• 81,083,371,824 seconds is equal to 2,578 years, 10 weeks, 2 days, 22 hours, 50 minutes, 24 seconds.
• To count from 1 to 81,083,371,824 would take you about five thousand, one hundred fifty-six 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 81083371824 cubic inches would be around 360.7 feet tall.

Recreational maths with 81083371824

• 81083371824 backwards is 42817338018
• The number of decimal digits it has is: 11
• The sum of 81083371824's digits is 45
• More coming soon!