81288330179121

Names of 81288330179121

• Cardinal: 81288330179121 can be written as Eighty-one trillion, two hundred eighty-eight billion, three hundred thirty million, one hundred seventy-nine thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 8.1288330179121 × 10¹³

Factors of 81288330179121

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1629

Divisors of 81288330179121

• Number of divisors d(n): 320
• Complete list of divisors:
  1 3 9 13 27 37 39 73 79 81 111 117 219 237 331 333 351 481 657 711 949 993 999 1027 1053 1093 1443 1971 2133 2701 2847 2923 2979 2997 3081 3279 4303 4329 5767 5913 6399 8103 8541 8769 8937 9243 9837 12247 12909 12987 14209 17301 24163 24309 25623 26149 26307 26811 27729 29511 35113 36741 37999 38727 38961 40441 42627 51903 72489 72927 74971 76869 78447 78921 79789 83187 86347 88533 105339 110223 113997 116181 121323 127881 155709 159211 213379 217467 218781 224913 235341 236763 239367 259041 314119 316017 330669 339937 341991 348543 361783 363969 383643 467127 477633 525733 640137 652401 674739 706023 718101 777123 894031 942357 948051 967513 992007 1019811 1025973 1037257 1085349 1091907 1122511 1150929 1432899 1577199 1908877 1920411 1957203 2024217 2118069 2154303 2331369 2682093 2773927 2827071 2844153 2902539 2952193 3059433 3077919 3111771 3194839 3256047 3275721 3367533 4298697 4703179 4731597 5726631 5761233 6072651 6303331 6462909 6994107 8046279 8321781 8481213 8707617 8856579 9178299 9335313 9584517 9768141 10102599 11622403 12577669 12896091 13385971 14109537 14194791 17179893 17283699 18909993 24138837 24815401 24965343 25443639 26122851 26410159 26569737 27534897 28005939 28580857 28753551 29304423 30307797 34867209 37733007 38378509 40157913 41532907 42328611 42584373 51539679 56729979 70628449 72416511 74446203 74896029 78368553 79230477 79709211 81943303 84017817 85742571 86260653 90923391 104601627 113199021 115135527 120473739 124598721 126985833 154619037 170189937 174017623 211885347 223338609 224688087 233223247 237691431 239127633 245829909 257227713 258781959 313804881 339597063 343332067 345406581 361421217 371551141 373796163 380957499 510569811 522052869 635656041 670015827 699669741 713074293 737489727 771683139 918169837 941414643 977175883 1018791189 1029996201 1036219743 1057491709 1084263651 1114653423 1121388489 1566158607 1906968123 2010047481 2086402561 2099009223 2139222879 2212469181 2315049417 2754509511 2931527649 3031902211 3089988603 3108659229 3172475127 3343960269 3364165467 4698475821 5720904369 6259207683 6297027669 6637407543 8263528533 8794582947 9095706633 9269965809 9517425381 10031880807 12703286479 13747392217 14095427463 18777623049 18891083007 24790585599 26383748841 27123233293 27287119899 27809897427 28552276143 30095642421 38109859437 41242176651 56332869147 74371756797 77196894757 79151246523 81369699879 81861359697 85656828429 114329578311 123726529953 168998607441 231590684271 244109099637 245584079091 342988734933 371179589859 694772052813 732327298911 1003559631841 1028966204799 1113538769577 2084316158439 2196981896733 3010678895523 6252948475317 9032036686569 27096110059707 81288330179121
• Sum of all divisors σ(n): 138412118225920
• Sum of proper divisors (its aliquot sum) s(n): 57123788046799
• 81288330179121 is a deficient number, because the sum of its proper divisors (57123788046799) is less than itself. Its deficiency is 24164542132322

Bases of 81288330179121

• Binary: 10010011110111001101010000010110111001000110001₂
• Hexadecimal: 0x49EE6A0B7231
• Base-36: STBCCZI29

Squares and roots of 81288330179121

• 81288330179121 squared (81288330179121²) is 6607792623309793947944332641
• 81288330179121 cubed (81288330179121³) is 537136428518766645152375335101116336988561
• The square root of 81288330179121 is 9016004.1137480079
• The cube root of 81288330179121 is 43318.7650886211

Scales and comparisons

• 81,288,330,179,121 seconds is equal to 2,584,717 years, 23 weeks, 5 days, 20 hours, 25 minutes, 21 seconds.
• To count from 1 to 81,288,330,179,121 would take you about six million, four hundred sixty-one thousand, seven hundred ninety-three 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 81288330179121 cubic inches would be around 3609.9 feet tall.

Recreational maths with 81288330179121

• 81288330179121 backwards is 12197103388218
• The number of decimal digits it has is: 14
• The sum of 81288330179121's digits is 54
• More coming soon!