81701121993075

Names of 81701121993075

• Cardinal: 81701121993075 can be written as Eighty-one trillion, seven hundred one billion, one hundred twenty-one million, nine hundred ninety-three thousand and seventy-five.

Scientific notation

• Scientific notation: 8.1701121993075 × 10¹³

Factors of 81701121993075

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 332

Divisors of 81701121993075

• Number of divisors d(n): 360
• Complete list of divisors:
  1 3 5 9 13 15 25 27 39 45 65 75 81 117 135 169 195 225 243 311 325 351 405 507 585 675 729 845 933 975 1053 1215 1521 1555 1755 2025 2187 2197 2535 2799 2925 3159 3645 4043 4225 4563 4665 5265 6075 6561 6591 7605 7775 8397 8775 9477 10935 10985 12129 12675 13689 13995 15795 18225 19683 19773 20215 22815 23325 25191 26325 28431 32805 32955 36387 38025 41067 41985 47385 52559 54675 54925 59049 59319 60645 68445 69975 75573 78975 85293 98415 98865 101075 109161 114075 123201 125955 142155 157677 164025 164775 177147 177957 181935 205335 209925 226719 236925 255879 262795 295245 296595 303225 327483 342225 369603 377865 426465 473031 492075 494325 531441 533871 545805 616005 629775 680157 683267 710775 767637 788385 885735 889785 909675 982449 1026675 1108809 1133595 1279395 1313975 1419093 1476225 1482975 1594323 1601613 1637415 1848015 1889325 2040471 2049801 2132325 2302911 2365155 2657205 2669355 2729025 2947347 3080025 3326427 3400785 3416335 3838185 3941925 4257279 4428675 4448925 4782969 4804839 4912245 5544045 5667975 6121413 6149403 6396975 6908733 7095465 7971615 8008065 8187075 8842041 9240075 9979281 10202355 10249005 11514555 11825775 12771837 13286025 13346775 14414517 14736735 16632135 17003925 17081675 18364239 18448209 19190925 20726199 21286395 23914845 24024195 24561225 26526123 27720225 29937843 30607065 30747015 34543665 35477325 38315511 39858075 40040325 43243551 44210205 49896405 51011775 51245025 55092717 55344627 57572775 62178597 63859185 72072585 73683675 79578369 83160675 89813529 91821195 92241045 103630995 106431975 114946533 119574225 120120975 129730653 132630615 149689215 153035325 153735075 165278151 166033881 172718325 191577555 216217755 221051025 238735107 249482025 269440587 275463585 276723135 310892985 319295925 344839599 360362925 389191959 397891845 449067645 459105975 461205225 495834453 498101643 518154975 574732665 648653265 663153075 716205321 748446075 808321761 826390755 830169405 957887775 1034518797 1081088775 1167575877 1193675535 1347202935 1377317925 1383615675 1487503359 1494304929 1554464925 1724197995 1945959795 1989459225 2148615963 2245338225 2479172265 2490508215 2873663325 3103556391 3243266325 3502727631 3581026605 4041608805 4131953775 4150847025 4482914787 5172593985 5837879385 5968377675 6445847889 6736014675 7437516795 7471524645 8620989975 9310669173 9729798975 10508182893 10743079815 12395861325 12452541075 13448744361 15517781955 17513638155 17905133025 19337543667 20208044025 22414573935 25862969925 27932007519 29189396925 32229239445 37187583975 37357623225 40346233083 46553345865 52540914465 53715399075 67243721805 77588909775 83796022557 87568190775 96687718335 112072869675 121038699249 139660037595 161146197225 201731165415 232766729325 251388067671 262704572325 336218609025 363116097747 418980112785 483438591675 605193496245 698300187975 1008655827075 1089348293241 1256940338355 1815580488735 2094900563925 3025967481225 3268044879723 5446741466205 6284701691775 9077902443675 16340224398615 27233707331025 81701121993075
• Sum of all divisors σ(n): 165151316410080
• Sum of proper divisors (its aliquot sum) s(n): 83450194417005
• 81701121993075 is an abundant number, because the sum of its proper divisors (83450194417005) is greater than itself. Its abundance is 1749072423930

Bases of 81701121993075

• Binary: 10010100100111010000110010110101010100101110011₂
• Hexadecimal: 0x4A4E865AA973
• Base-36: SYKZ6KO6R

Squares and roots of 81701121993075

• 81701121993075 squared (81701121993075²) is 6675073334927323460347955625
• 81701121993075 cubed (81701121993075³) is 545360980849619232322978770005801657296875
• The square root of 81701121993075 is 9038867.2959102017
• The cube root of 81701121993075 is 43391.9672663225

Scales and comparisons

• 81,701,121,993,075 seconds is equal to 2,597,842 years, 49 weeks, 6 days, 21 hours, 11 minutes, 15 seconds.
• To count from 1 to 81,701,121,993,075 would take you about six million, four hundred ninety-four thousand, six hundred 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 81701121993075 cubic inches would be around 3616 feet tall.

Recreational maths with 81701121993075

• 81701121993075 backwards is 57039912110718
• The number of decimal digits it has is: 14
• The sum of 81701121993075's digits is 54
• More coming soon!