81742708608

Names of 81742708608

• Cardinal: 81742708608 can be written as Eighty-one billion, seven hundred forty-two million, seven hundred eight thousand, six hundred eight.

Scientific notation

• Scientific notation: 8.1742708608 × 10¹⁰

Factors of 81742708608

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 36785

Divisors of 81742708608

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 17 22 24 31 32 33 34 44 48 51 62 64 66 68 88 93 96 102 124 128 132 136 176 186 187 192 204 248 264 272 341 352 372 374 384 408 496 527 528 544 561 682 704 744 748 816 992 1023 1054 1056 1088 1122 1364 1408 1488 1496 1581 1632 1984 2046 2108 2112 2176 2244 2728 2976 2992 3162 3264 3968 4092 4216 4224 4488 5456 5797 5952 5984 6324 6528 8184 8432 8976 10912 11594 11904 11968 12648 16368 16864 17391 17952 21824 23188 23936 25296 32736 33728 34782 35904 36721 43648 46376 50592 65472 67456 69564 71808 73442 92752 101184 110163 130944 139128 146884 185504 202368 220326 278256 293768 371008 403931 440652 556512 587536 624257 742016 807862 881304 1113024 1138351 1175072 1211793 1248514 1615724 1762608 1872771 2226048 2276702 2350144 2423586 2497028 3231448 3415053 3525216 3745542 4553404 4700288 4847172 4994056 6462896 6830106 6866827 7050432 7491084 9106808 9694344 9988112 12521861 12925792 13660212 13733654 14100864 14982168 18213616 19351967 19388688 19976224 20600481 25043722 25851584 27320424 27467308 29964336 36427232 37565583 38703934 38777376 39952448 41200962 50087444 51703168 54640848 54934616 58055901 59928672 72854464 75131166 77407868 77554752 79904896 82401924 100174888 109281696 109869232 116111802 119857344 145708928 150262332 154815736 155109504 164803848 200349776 212871637 218563392 219738464 232223604 239714688 300524664 309631472 329607696 400699552 425743274 437126784 439476928 464447208 601049328 619262944 638614911 659215392 801399104 851486548 878953856 928894416 1202098656 1238525888 1277229822 1318430784 1602798208 1702973096 1857788832 2404197312 2477051776 2554459644 2636861568 3405946192 3715577664 4808394624 5108919288 6811892384 7431155328 10217838576 13623784768 20435677152 27247569536 40871354304 81742708608
• Sum of all divisors σ(n): 258898913280
• Sum of proper divisors (its aliquot sum) s(n): 177156204672
• 81742708608 is an abundant number, because the sum of its proper divisors (177156204672) is greater than itself. Its abundance is 95413496064

Bases of 81742708608

• Binary: 1001100001000001111101011111110000000₂
• Hexadecimal: 0x13083EBF80
• Base-36: 11JVHXMO

Squares and roots of 81742708608

• 81742708608 squared (81742708608²) is 6681870410572397297664
• 81742708608 cubed (81742708608³) is 546194185927836794790954991091712
• The square root of 81742708608 is 285906.8180509167
• The cube root of 81742708608 is 4339.9328319647

Scales and comparisons

• 81,742,708,608 seconds is equal to 2,599 years, 8 weeks, 4 days, 3 hours, 56 minutes, 48 seconds.
• To count from 1 to 81,742,708,608 would take you about five thousand, one hundred ninety-eight 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 81742708608 cubic inches would be around 361.7 feet tall.

Recreational maths with 81742708608

• 81742708608 backwards is 80680724718
• 81742708608 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81742708608's digits is 51
• More coming soon!