81789061730992

Names of 81789061730992

• Cardinal: 81789061730992 can be written as Eighty-one trillion, seven hundred eighty-nine billion, sixty-one million, seven hundred thirty thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 8.1789061730992 × 10¹³

Factors of 81789061730992

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3023

Divisors of 81789061730992

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 31 44 56 61 62 73 77 88 112 122 124 146 154 176 181 217 244 248 292 308 341 362 427 434 488 496 511 584 616 671 682 724 803 854 868 976 1022 1168 1232 1267 1342 1364 1448 1606 1708 1736 1891 1991 2044 2263 2387 2534 2657 2684 2728 2896 3212 3416 3472 3782 3982 4088 4453 4526 4697 4774 5068 5314 5368 5456 5611 5621 6424 6832 7564 7964 8176 8906 9052 9394 9548 10136 10628 10736 11041 11222 11242 12848 13213 13237 13937 15128 15841 15928 17812 18104 18599 18788 19096 20272 20801 21256 22082 22444 22484 24893 26426 26474 27874 29227 30256 31171 31682 31856 35624 36208 37198 37576 38192 39277 41602 42512 44164 44888 44968 48983 49786 52852 52948 55748 58454 61721 62342 63364 71248 74396 75152 77287 78554 82367 83204 88328 89776 89936 92491 97966 99572 105704 105896 111496 116908 121451 123442 124684 126728 138043 145343 145607 148792 154574 157108 162077 164734 166408 174251 176656 184982 193961 195932 199144 204589 211408 211792 222992 233816 242902 246884 249368 253456 276086 290686 291214 297584 309148 314216 324154 329468 332816 342271 342881 348502 369964 387922 391864 398288 409178 409603 432047 467632 480917 485804 493768 498736 552172 576569 581372 582428 618296 628432 648308 658936 684542 685762 697004 739928 775844 783728 805993 818356 819206 850157 864094 906037 961834 966301 971608 987536 1017401 1104344 1134539 1153138 1162744 1164856 1236592 1296616 1317872 1357727 1369084 1371524 1394008 1479856 1518473 1551688 1611986 1636712 1638412 1700314 1728188 1782847 1812074 1923668 1932602 1943216 2034802 2133571 2208688 2269078 2306276 2325488 2329712 2395897 2593232 2715454 2738168 2743048 2788016 2867221 3036946 3103376 3223972 3273424 3276824 3366419 3400628 3456376 3565694 3624148 3764981 3847336 3865204 4069604 4267142 4505633 4538156 4612552 4791794 5024387 5290087 5430908 5476336 5486096 5641951 5734442 6012791 6073892 6342259 6447944 6553648 6732838 6801256 6912752 7131388 7248296 7529962 7694672 7730408 8139208 8534284 8865923 9011266 9076312 9225104 9583588 10048774 10580174 10629311 10861816 11283902 11468884 11831621 12025582 12147784 12479929 12684518 12895888 13465676 13602512 14262776 14496592 14908427 14934997 15059924 15460816 16278416 17068568 17731846 18022532 18152624 19167176 20097548 21160348 21258622 21723632 22567804 22937768 23663242 24051164 24295568 24959858 24985783 25369036 26354867 26931352 28525552 29335937 29816854 29869994 30119848 31539431 34137136 35106941 35170709 35463692 36045064 37030609 38334352 40195096 42089537 42320696 42517244 45135608 45875536 47326484 48102328 49919716 49971566 50738072 52709734 53862704 55268257 58671874 59633708 59739988 60239696 62061461 63078862 66140701 70213882 70341418 70927384 72090128 74061218 80390192 82821347 84179074 84641392 85034488 90271216 94652968 96204656 99839432 99943132 101476144 104358989 105419468 110536514 117343748 119267416 119479976 124122922 126157724 130147831 132281402 140427764 140682836 141854768 148122436 163992697 165642694 168358148 170068976 174900481 189305936 199678864 199886264 205351559 208717978 210838936 221073028 234687496 238534832 238959952 245748587 248245844 252315448 260295662 264562804 274843613 280855528 281365672 296244872 322695307 327985394 331285388 336716296 349800962 366780251 386176351 386877799 399772528 410703118 417435956 421677872 442146056 462984907 469374992 491497174 496491688 504630896 520591324 529125608 549687226 561711056 562731344 592489744 645390614 655970788 662570776 673432592 699601924 733560502 772352702 773755598 821406236 834871912 884292112 909414047 911034817 925969814 982994348 992983376 1041182648 1058251216 1088315171 1099374452 1147948879 1290781228 1311941576 1325141552 1399203848 1467121004 1544705404 1547511196 1642812472 1669743824 1818828094 1822069634 1851939628 1923905291 1965988696 2082365296 2141523401 2176630342 2198748904 2258867149 2295897758 2567461757 2581562456 2623883152 2703234457 2798407696 2934242008 3089410808 3095022392 3285624944 3637656188 3644139268 3703879256 3847810582 3931977392 4034582761 4283046802 4353260684 4397497808 4517734298 4591795516 5134923514 5163124912 5406468914 5868484016 6178821616 6190044784 6365898329 7275312376 7288278536 7407758512 7618206197 7695621164 8069165522 8566093604 8706521368 9035468596 9183591032 10003554517 10269847028 10812937828 11971466881 12731796658 14550624752 14576557072 14990663807 15236412394 15391242328 16138331044 17132187208 17413042736 18070937192 18367182064 20007109034 20539694056 21625875656 23556757411 23942933762 25463593316 28242079327 29981327614 30472824788 30782484656 32276662088 34264374416 36141874384 40014218068 41079388112 43251751312 47113514822 47885867524 50927186632 56484158654 59962655228 60945649576 64553324176 66387225431 70024881619 80028436136 83800268167 94227029644 95771735048 101854373264 112968317308 119925310456 121891299152 132774450862 140049763238 160056872272 164897301877 167600536334 188454059288 191543470096 225936634616 239850620912 265548901724 280099526476 329794603754 335201072668 376908118576 451873269232 464710578017 531097803448 560199052952 659589207508 670402145336 730259479741 929421156034 1062195606896 1120398105904 1319178415016 1340804290672 1460518959482 1858842312068 2638356830032 2921037918964 3717684624136 5111816358187 5842075837928 7435369248272 10223632716374 11684151675856 20447265432748 40894530865496 81789061730992
• Sum of all divisors σ(n): 211364807786496
• Sum of proper divisors (its aliquot sum) s(n): 129575746055504
• 81789061730992 is an abundant number, because the sum of its proper divisors (129575746055504) is greater than itself. Its abundance is 47786684324512

Bases of 81789061730992

• Binary: 10010100110001011111111111110001001001010110000₂
• Hexadecimal: 0x4A62FFF892B0
• Base-36: SZPDJMG8G

Squares and roots of 81789061730992

• 81789061730992 squared (81789061730992²) is 6689450618836020091373304064
• 81789061730992 cubed (81789061730992³) is 547123889610401883014736738495198188351488
• The square root of 81789061730992 is 9043730.5206973079
• The cube root of 81789061730992 is 43407.5301287377

Scales and comparisons

• 81,789,061,730,992 seconds is equal to 2,600,639 years, 8 weeks, 6 days, 22 hours, 9 minutes, 52 seconds.
• To count from 1 to 81,789,061,730,992 would take you about six million, five hundred one thousand, five hundred ninety-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 81789061730992 cubic inches would be around 3617.3 feet tall.

Recreational maths with 81789061730992

• 81789061730992 backwards is 29903716098718
• The number of decimal digits it has is: 14
• The sum of 81789061730992's digits is 70
• More coming soon!