81579513088114128

Names of 81579513088114128

• Cardinal: 81579513088114128 can be written as Eighty-one quadrillion, five hundred seventy-nine trillion, five hundred thirteen billion, eighty-eight million, one hundred fourteen thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 8.1579513088114128 × 10¹⁶

Factors of 81579513088114128

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 35204899

Divisors of 81579513088114128

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 29 36 46 48 58 69 72 87 92 116 138 144 174 184 207 232 261 276 348 368 414 464 522 529 552 667 696 828 1044 1049 1058 1104 1334 1392 1587 1656 2001 2088 2098 2116 2668 3147 3174 3312 4002 4176 4196 4232 4761 5336 6003 6294 6348 8004 8392 8464 9441 9522 10672 12006 12588 12696 15341 16008 16784 18882 19044 24012 24127 25176 25392 30421 30682 32016 37764 38088 46023 48024 48254 50352 60842 61364 72381 75528 76176 91263 92046 96048 96508 121684 122728 138069 144762 151056 182526 184092 193016 217143 243368 245456 273789 276138 289524 365052 368184 386032 434286 486736 547578 552276 554921 579048 699683 730104 736368 868572 1095156 1104552 1109842 1158096 1399366 1460208 1664763 1737144 2099049 2190312 2209104 2219684 2798732 3329526 3474288 4198098 4380624 4439368 4994289 5597464 6297147 6659052 8396196 8878736 9988578 11194928 12594294 13318104 16092709 16792392 19977156 25188588 26636208 32185418 33584784 35203793 39954312 48278127 50377176 64370836 70407586 79908624 96556254 100754352 105611379 128741672 140815172 144834381 193112508 211222758 257483344 281630344 289668762 316834137 386225016 422445516 563260688 579337524 633668274 772450032 809687239 844891032 1020909997 1158675048 1267336548 1619374478 1689782064 2041819994 2317350096 2429061717 2534673096 3062729991 3238748956 4083639988 4858123434 5069346192 6125459982 6477497912 7287185151 8167279976 9188189973 9716246868 12250919964 12954995824 14574370302 16334559952 18376379946 18622806497 19432493736 23480929931 24501839928 29148740604 36752759892 36928778857 37245612994 38864987472 46961859862 49003679856 55868419491 58297481208 70442789793 73505519784 73857557714 74491225988 93923719724 110786336571 111736838982 116594962416 140885579586 147011039568 147715115428 148982451976 167605258473 187847439448 211328369379 221572673142 223473677964 281771159172 295430230856 297964903952 332359009713 335210516946 375694878896 422656738758 443145346284 446947355928 540061388413 563542318344 590860461712 664718019426 670421033892 845313477516 849361913711 886290692568 893894711856 1070934586853 1080122776826 1127084636688 1329436038852 1340842067784 1620184165239 1690626955032 1698723827422 1772581385136 2141869173706 2160245553652 2548085741133 2658872077704 2681684135568 3212803760559 3240368330478 3381253910064 3397447654844 4283738347412 4320491107304 4860552495717 5096171482266 5317744155408 6425607521118 6480736660956 6794895309688 7644257223399 8567476694824 8640982214608 9638411281677 9721104991434 10192342964532 12851215042236 12961473321912 13589790619376 15288514446798 17134953389648 19276822563354 19442209982868 19535324015353 20384685929064 24631495497619 25702430084472 25922946643824 30577028893596 38553645126708 38884419965736 39070648030706 40769371858128 49262990995238 51404860168944 58605972046059 61154057787192 73894486492857 77107290253416 77768839931472 78141296061412 98525981990476 117211944092118 122308115574384 147788972985714 154214580506832 156282592122824 175817916138177 197051963980952 221683459478571 234423888184236 295577945971428 312565184245648 351635832276354 394103927961904 443366918957142 468847776368472 566524396445237 591155891942856 703271664552708 886733837914284 937695552736944 1133048792890474 1182311783885712 1406543329105416 1699573189335711 1773467675828568 2266097585780948 2813086658210832 3399146378671422 3546935351657136 4532195171561896 5098719568007133 6798292757342844 9064390343123792 10197439136014266 13596585514685688 20394878272028532 27193171029371376 40789756544057064 81579513088114128
• Sum of all divisors σ(n): 247132693301949000
• Sum of proper divisors (its aliquot sum) s(n): 165553180213834872
• 81579513088114128 is an abundant number, because the sum of its proper divisors (165553180213834872) is greater than itself. Its abundance is 83973667125720744

Bases of 81579513088114128

• Binary: 100100001110101000010001010001010100100001111110111010000₂
• Hexadecimal: 0x121D4228A90FDD0
• Base-36: MB9IUXO1XW0

Squares and roots of 81579513088114128

• 81579513088114128 squared (81579513088114128²) is 6655216955693784309083427553200384
• 81579513088114128 cubed (81579513088114128³) is 542929358741260139763839935575837616234417445425152
• The square root of 81579513088114128 is 285621275.6223074639
• The cube root of 81579513088114128 is 433704.2749718435

Scales and comparisons

• 81,579,513,088,114,128 seconds is equal to 2,593,976,174 years, 10 weeks, 2 days, 17 hours, 28 minutes, 48 seconds.
• To count from 1 to 81,579,513,088,114,128 would take you about seven billion, seven hundred eighty-one million, nine hundred twenty-eight thousand, five hundred twenty-two 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 81579513088114128 cubic inches would be around 36142 feet tall.

Recreational maths with 81579513088114128

• 81579513088114128 backwards is 82141188031597518
• 81579513088114128 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 81579513088114128's digits is 72
• More coming soon!