81402232315131

Names of 81402232315131

• Cardinal: 81402232315131 can be written as Eighty-one trillion, four hundred two billion, two hundred thirty-two million, three hundred fifteen thousand, one hundred thirty-one.

Scientific notation

• Scientific notation: 8.1402232315131 × 10¹³

Factors of 81402232315131

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1825

Divisors of 81402232315131

• Number of divisors d(n): 240
• Complete list of divisors:
  1 3 7 9 13 21 27 39 63 79 81 91 117 169 189 237 273 351 507 553 567 711 819 1027 1053 1183 1521 1659 1723 2133 2457 3081 3549 4563 4977 5169 6241 6399 7189 7371 9243 10647 12061 13351 13689 14931 15507 18723 21567 22399 27729 31941 36183 40053 43687 44793 46521 56169 64701 67197 81133 83187 93457 95823 108549 120159 131061 136117 139563 156793 168507 194103 201591 243399 280371 291187 325647 360477 393183 408351 470379 493039 505521 567931 582309 604773 730197 841113 873561 952819 976941 1054729 1081431 1179549 1225053 1411137 1479117 1703793 1769521 1814319 2038309 2190591 2523339 2620683 2858457 3164187 3451273 3538647 3675159 4233411 4437351 5111379 5308563 6114927 6409507 6571773 7383103 7570017 7862049 8575371 9492561 10353819 10753243 11025477 12386647 12700233 13312053 15334137 15925689 18344781 19228521 22149309 23003773 23586147 25726113 28477683 31061457 32259729 37159941 39936159 44866549 46002411 47777067 55034343 57685563 66447927 69011319 75272701 77178339 83323591 85433049 93184371 96779187 111479823 134599647 139792159 143331201 161026411 165103029 173056689 199343781 207033957 225818103 249970773 279553113 290337561 334439469 403798941 419376477 483079233 519170067 583265137 598031343 621101871 677454309 749912319 849506197 871012683 978545113 1003318407 1211396823 1258129431 1449237699 1749795411 1817298067 1863305613 2032362927 2249736957 2548518591 2935635339 3634190469 3774388293 4347713097 5249386233 5451894201 5946543379 6097088781 6749210871 7645555773 8806906017 11043580561 11323164879 12721086469 13043139291 15748158699 16355682603 17839630137 22936667319 26420718051 33130741683 38163259407 47244476097 49067047809 53518890411 68810001957 77305063927 79262154153 99392225049 114489778221 143566547293 147201143427 160556671233 231915191781 298176675147 343469334663 430699641879 481670013699 695745575343 894530025441 1004965831051 1030408003989 1292098925637 2087236726029 3014897493153 3876296776911 6261710178087 9044692479459 11628890330733 27134077438377 81402232315131
• Sum of all divisors σ(n): 152502674396160
• Sum of proper divisors (its aliquot sum) s(n): 71100442081029
• 81402232315131 is a deficient number, because the sum of its proper divisors (71100442081029) is less than itself. Its deficiency is 10301790234102

Bases of 81402232315131

• Binary: 10010100000100011101111001001000001110011111011₂
• Hexadecimal: 0x4A08EF241CFB
• Base-36: SURO3DKOR

Squares and roots of 81402232315131

• 81402232315131 squared (81402232315131²) is 6626323425886557644091547161
• 81402232315131 cubed (81402232315131³) is 539397518909212298548770348178876700393091
• The square root of 81402232315131 is 9022318.5664845043
• The cube root of 81402232315131 is 43338.9885617897

Scales and comparisons

• 81,402,232,315,131 seconds is equal to 2,588,339 years, 10 weeks, 14 hours, 38 minutes, 51 seconds.
• To count from 1 to 81,402,232,315,131 would take you about six million, four hundred seventy thousand, eight hundred forty-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 81402232315131 cubic inches would be around 3611.6 feet tall.

Recreational maths with 81402232315131

• 81402232315131 backwards is 13151323220418
• The number of decimal digits it has is: 14
• The sum of 81402232315131's digits is 36
• More coming soon!