81642825675677976

Names of 81642825675677976

• Cardinal: 81642825675677976 can be written as Eighty-one quadrillion, six hundred forty-two trillion, eight hundred twenty-five billion, six hundred seventy-five million, six hundred seventy-seven thousand, nine hundred seventy-six.

Scientific notation

• Scientific notation: 8.1642825675677976 × 10¹⁶

Factors of 81642825675677976

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 356

Divisors of 81642825675677976

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 12 24 31 62 79 93 124 158 186 237 241 248 316 372 474 482 632 723 744 948 961 964 1446 1896 1922 1928 2449 2883 2892 3844 4898 5766 5784 6241 7347 7471 7688 9796 11532 12482 14694 14942 18723 19039 19592 22413 23064 24964 29388 29791 29884 37446 38078 44826 49928 57117 58776 59582 59768 74892 75919 76156 89373 89652 114234 119164 149784 151838 152312 178746 179304 193471 227757 228468 231601 238328 303676 357492 386942 455514 456936 463202 493039 580413 590209 607352 694803 714984 773884 911028 923521 926404 986078 1160826 1180418 1389606 1479117 1504081 1547768 1770627 1822056 1847042 1852808 1972156 2321652 2353489 2360836 2770563 2779212 2958234 3008162 3541254 3694084 3944312 4512243 4643304 4706978 4721672 5541126 5558424 5916468 5997601 6016324 7060467 7082508 7179631 7388168 9024486 9413956 11082252 11832936 11995202 12032648 14120934 14165016 14359262 15284209 17992803 18048972 18296479 18827912 21538893 22164504 23990404 28241868 28629151 28718524 30568418 35985606 36097944 36592958 43077786 45852627 46626511 47980808 54889437 56483736 57258302 57437048 61136836 71971212 72958159 73185916 85887453 86155572 91705254 93253022 109778874 114516604 118822399 122273672 139879533 143942424 145916318 146371832 171774906 172311144 183410508 185925631 186506044 218874477 219557748 222568561 229033208 237644798 279759066 291832636 343549812 356467197 366821016 371851262 373012088 437748954 439115496 445137122 473810479 475289596 557776893 559518132 567190849 583665272 667705683 687099624 712934394 743702524 875497908 890274244 947620958 950579192 1115553786 1119036264 1134381698 1335411366 1421431437 1425868788 1445421841 1487405048 1701572547 1750995816 1780548488 1895241916 2231107572 2261702929 2268763396 2670822732 2842862874 2851737576 2890843682 3403145094 3683494369 3790483832 4336265523 4462215144 4523405858 4537526792 5341645464 5685725748 5763694561 5781687364 6785108787 6806290188 6899625391 7366988738 8672531046 9046811716 11050483107 11371451496 11527389122 11563374728 13570217574 13612580376 13799250782 14688124849 14733977476 17291083683 17345062092 17582916319 18093623432 20698876173 22100966214 23054778244 27140435148 27598501564 29376249698 29467954952 34582167366 34690124184 35165832638 41397752346 44064374547 44201932428 44808077071 46109556488 52748748957 54280870296 55197003128 58752499396 69164334732 70331665276 82795504692 88128749094 88403864856 89616154142 105497497914 114188325439 117504998792 134424231213 138328669464 140663330552 165591009384 176257498188 178674531391 179232308284 210994995828 228376650878 268848462426 342564976317 352514996376 357349062782 358464616568 421989991656 455331870319 456753301756 536023594173 537696924852 545070405889 685129952634 714698125564 910663740638 913506603512 1072047188346 1075393849704 1090140811778 1365995610957 1370259905268 1389050389201 1429396251128 1635211217667 1821327481276 2144094376692 2180281623556 2731991221914 2740519810536 2778100778402 3270422435334 3539838088609 3642654962552 4167151167603 4288188753384 4360563247112 5463982443828 5556201556804 6540844870668 7079676177218 8334302335206 10619514265827 10927964887656 11112403113608 13081689741336 14115287979889 14159352354436 16668604670412 21239028531654 28230575959778 28318704708872 33337209340824 42345863939667 42478057063308 43060562065231 56461151919556 84691727879334 84956114126616 86121124130462 109734980746879 112922303839112 129181686195693 169383455758668 172242248260924 219469961493758 258363372391386 329204942240637 338766911517336 344484496521848 438939922987516 516726744782772 658409884481274 877879845975032 1033453489565544 1316819768962548 2633639537925096 3401784403153249 6803568806306498 10205353209459747 13607137612612996 20410706418919494 27214275225225992 40821412837838988 81642825675677976
• Sum of all divisors σ(n): 214500977420083200
• Sum of proper divisors (its aliquot sum) s(n): 132858151744405224
• 81642825675677976 is an abundant number, because the sum of its proper divisors (132858151744405224) is greater than itself. Its abundance is 51215326068727248

Bases of 81642825675677976

• Binary: 100100010000011011011011110100110110110111010000100011000₂
• Hexadecimal: 0x1220DB7A6DBA118
• Base-36: MBVYSC408WO

Squares and roots of 81642825675677976

• 81642825675677976 squared (81642825675677976²) is 6665550984309142958385127251456576
• 81642825675677976 cubed (81642825675677976³) is 544194417044295102454228699209715239233822323570176
• The square root of 81642825675677976 is 285732087.2350145697
• The cube root of 81642825675677976 is 433816.4430004045

Scales and comparisons

• 81,642,825,675,677,976 seconds is equal to 2,595,989,318 years, 33 weeks, 4 days, 19 minutes, 36 seconds.
• To count from 1 to 81,642,825,675,677,976 would take you about seven billion, seven hundred eighty-seven million, nine hundred sixty-seven thousand, nine hundred fifty-five 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 81642825675677976 cubic inches would be around 36151.4 feet tall.

Recreational maths with 81642825675677976

• 81642825675677976 backwards is 67977657652824618
• The number of decimal digits it has is: 17
• The sum of 81642825675677976's digits is 96
• More coming soon!