81994961635773732

Names of 81994961635773732

• Cardinal: 81994961635773732 can be written as Eighty-one quadrillion, nine hundred ninety-four trillion, nine hundred sixty-one billion, six hundred thirty-five million, seven hundred seventy-three thousand, seven hundred thirty-two.

Scientific notation

• Scientific notation: 8.1994961635773732 × 10¹⁶

Factors of 81994961635773732

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 765952054

Divisors of 81994961635773732

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 41 42 52 63 78 82 84 91 117 123 126 156 164 182 234 246 252 273 287 364 369 468 492 533 546 574 738 797 819 861 1066 1092 1148 1476 1594 1599 1638 1722 2132 2391 2583 3188 3198 3276 3444 3731 4782 4797 5166 5579 6396 7173 7462 9564 9594 10332 10361 11158 11193 14346 14924 16737 19188 20722 22316 22386 28692 31083 32677 33474 33579 41444 44772 50211 62166 65354 66948 67158 72527 93249 98031 100422 124332 130708 134316 145054 186498 196062 200844 217581 228739 290108 294093 372996 392124 424801 435162 457478 588186 652743 686217 849602 870324 914956 1176372 1274403 1305486 1372434 1699204 2058651 2548806 2610972 2744868 2973607 3823209 4117302 5097612 5947214 7646418 8234604 8920821 11894428 15292836 17841642 26762463 35683284 53524926 107049852 765951191 1531902382 2297853573 3063804764 4595707146 5361658337 6893560719 9191414292 9957365483 10723316674 13787121438 16084975011 19914730966 21446633348 27574242876 29872096449 31403998831 32169950022 39829461932 48254925033 59744192898 62807997662 64339900044 69701558381 89616289347 94211996493 96509850066 119488385796 125615995324 139403116762 179232578694 188423992986 193019700132 209104675143 219827991817 278806233524 282635989479 358465157388 376847985972 408251984803 418209350286 439655983634 565271978958 610463099227 627314025429 659483975451 816503969606 836418700572 879311967268 1130543957916 1220926198454 1224755954409 1254628050858 1318967950902 1633007939212 1831389297681 1978451926353 2441852396908 2449511908818 2509256101716 2637935901804 2857763893621 3662778595362 3674267863227 3956903852706 4273241694589 4899023817636 5494167893043 5715527787242 7325557190724 7348535726454 7913807705412 7936020289951 8546483389178 8573291680863 10988335786086 11431055574484 12819725083767 14697071452908 15872040579902 17092966778356 17146583361726 21976671572172 23808060869853 25028987068307 25639450167534 25719875042589 31744081159804 34293166723452 38459175251301 47616121739706 50057974136614 51278900335068 51439750085178 55552142029657 71424182609559 75086961204921 76918350502602 95232243479412 100115948273228 102879500170356 111104284059314 142848365219118 150173922409842 153836701005204 166656426088971 175202909478149 222208568118628 225260883614763 285696730438236 300347844819684 325376831887991 333312852177942 350405818956298 450521767229526 499969278266913 525608728434447 650753663775982 666625704355884 700811637912596 901043534459052 976130495663973 999938556533826 1051217456868894 1301507327551964 1576826185303341 1952260991327946 1999877113067652 2102434913737788 2277637823215937 2928391486991919 3153652370606682 3904521982655892 4555275646431874 5856782973983838 6307304741213364 6832913469647811 9110551292863748 11713565947967676 13665826939295622 20498740408943433 27331653878591244 40997480817886866 81994961635773732
• Sum of all divisors σ(n): 261645152579725824
• Sum of proper divisors (its aliquot sum) s(n): 179650190943952092
• 81994961635773732 is an abundant number, because the sum of its proper divisors (179650190943952092) is greater than itself. Its abundance is 97655229308178360

Bases of 81994961635773732

• Binary: 100100011010011011111101110110001101011000000110100100100₂
• Hexadecimal: 0x1234DFBB1AC0D24
• Base-36: MFCSDD2RLT0

Squares and roots of 81994961635773732

• 81994961635773732 squared (81994961635773732²) is 6723173733652006124537142301207824
• 81994961635773732 cubed (81994961635773732³) is 551266372361437885281494049122821515228830372079168
• The square root of 81994961635773732 is 286347623.7648458855
• The cube root of 81994961635773732 is 434439.2503945731

Scales and comparisons

• 81,994,961,635,773,732 seconds is equal to 2,607,186,152 years, 49 weeks, 2 days, 7 hours, 22 minutes, 12 seconds.
• To count from 1 to 81,994,961,635,773,732 would take you about seven billion, eight hundred twenty-one million, five hundred fifty-eight thousand, four hundred fifty-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 81994961635773732 cubic inches would be around 36203.3 feet tall.

Recreational maths with 81994961635773732

• 81994961635773732 backwards is 23737753616949918
• The number of decimal digits it has is: 17
• The sum of 81994961635773732's digits is 90
• More coming soon!