81138838030140

Names of 81138838030140

• Cardinal: 81138838030140 can be written as Eighty-one trillion, one hundred thirty-eight billion, eight hundred thirty-eight million, thirty thousand, one hundred forty.

Scientific notation

• Scientific notation: 8.113883803014 × 10¹³

Factors of 81138838030140

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 846

Divisors of 81138838030140

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 20 22 30 31 33 44 55 60 61 62 66 93 110 121 122 124 132 155 165 183 186 220 242 244 305 310 330 341 363 366 372 465 484 605 610 620 660 671 682 726 732 733 915 930 1023 1210 1220 1331 1342 1364 1452 1466 1705 1815 1830 1860 1891 2013 2046 2199 2420 2662 2684 2932 3355 3410 3630 3660 3665 3751 3782 3993 4026 4092 4398 5115 5324 5673 6655 6710 6820 7260 7330 7381 7502 7564 7986 8052 8063 8796 9455 10065 10230 10995 11253 11346 13310 13420 14660 14762 15004 15972 16126 18755 18910 19965 20130 20460 20801 21990 22143 22506 22692 22723 24189 26620 28365 29524 32252 36905 37510 37820 39930 40260 40315 41261 41602 43980 44286 44713 45012 45446 48378 56265 56730 62403 68169 73810 75020 79860 80630 81191 82522 83204 88572 88693 89426 90892 96756 104005 110715 112530 113460 113615 120945 123783 124806 134139 136338 147620 161260 162382 165044 177386 178852 206305 208010 221430 223565 225060 227230 228811 241890 243573 247566 249612 249953 266079 268278 272676 312015 324764 340845 354772 405955 412610 416020 442860 443465 447130 454460 457622 483780 487146 491843 495132 499906 532158 536556 537289 618915 624030 670695 681690 686433 749859 811910 825220 886930 894260 915244 974292 975623 983686 999812 1064316 1074578 1144055 1217865 1237830 1248060 1249765 1330395 1341390 1363380 1372866 1386103 1475529 1499718 1611867 1623820 1773860 1951246 1967372 2149156 2288110 2435730 2459215 2475660 2499530 2516921 2660790 2682780 2686445 2745732 2749483 2772206 2926869 2951058 2999436 3223734 3432165 3749295 3902492 4158309 4576220 4871460 4878115 4918430 4999060 5033842 5321580 5372890 5410273 5498966 5544412 5853738 5902116 5910179 6447468 6864330 6930515 7377645 7498590 7550763 8059335 8248449 8316618 9756230 9836860 10067684 10745780 10820546 10997932 11707476 11820358 12584605 13728660 13747415 13861030 14634345 14755290 14997180 15101526 15247133 16118670 16230819 16496898 16633236 16655959 17730537 19512460 20791545 21641092 23640716 25169210 27051365 27494830 27722060 29268690 29510580 29550895 30203052 30244313 30494266 32237340 32461638 32774629 32993796 33311918 35461074 37753815 41242245 41583090 45741399 49967877 50338420 54102730 54989660 58537380 59101790 59513003 60488626 60988532 64923276 65011969 65549258 66623836 70922148 75507630 76235665 81154095 82484490 83166180 83279795 88652685 90732939 91482798 98323887 99935754 108205460 118203580 119026006 120977252 130023938 131098516 151015260 151221565 152471330 162308190 163873145 164968980 166559590 167718463 177305370 178539009 181465878 182965596 183215549 195035907 196647774 199871508 228706995 238052012 249839385 260047876 297565015 302443130 304942660 324616380 325059845 327746290 333119180 335436926 354610740 357078018 360520919 362931756 366431098 390071814 393295548 453664695 457413990 491619435 499678770 503155389 549646647 595130030 604886260 650119690 655492580 670873852 714156036 715131659 721041838 732862196 780143628 838592315 892695045 907329390 914827980 916077745 975179535 983238870 999357540 1006310778 1016013499 1081562757 1099293294 1190260060 1300239380 1430263318 1442083676 1677184630 1785390090 1802604595 1814658780 1832155490 1844903093 1950359070 1966477740 2012621556 2015371039 2032026998 2145394977 2163125514 2198586588 2515776945 2748233235 2860526636 3048040497 3354369260 3570780180 3575658295 3605209190 3664310980 3689806186 3900718140 3965730109 4030742078 4064053996 4290789954 4326251028 5031553890 5080067495 5407813785 5496466470 5534709279 6046113117 6096080994 7151316590 7210418380 7379612372 7931460218 8061484156 8581579908 9224515465 10063107780 10076855195 10160134990 10726974885 10815627570 10992932940 11069418558 11176148489 11897190327 12092226234 12192161988 14302633180 15240202485 15862920436 18449030930 19828650545 20153710390 20320269980 21453949770 21631255140 22138837116 22169081429 22352296978 23794380654 24184452468 27673546395 30230565585 30480404970 33528445467 36898061860 39657301090 40307420780 42907899540 43623031199 44338162858 44704593956 47588761308 55347092790 55880742445 59485951635 60461131170 60960809940 66507244287 67056890934 79314602180 87246062398 88676325716 110694185580 110845407145 111761484890 118971903270 120922262340 122937633379 130869093597 133014488574 134113781868 167642227335 174492124796 218115155995 221690814290 223522969780 237943806540 245875266758 261738187194 266028977148 332536221435 335284454670 368812900137 436230311990 443381628580 491750533516 523476374388 614688166895 654345467985 665072442870 670568909340 737625800274 872460623980 1229376333790 1308690935970 1330144885740 1352313967169 1475251600548 1844064500685 2458752667580 2617381871940 2704627934338 3688129001370 4056941901507 5409255868676 6761569835845 7376258002740 8113883803014 13523139671690 16227767606028 20284709507535 27046279343380 40569419015070 81138838030140
• Sum of all divisors σ(n): 262538420465664
• Sum of proper divisors (its aliquot sum) s(n): 181399582435524
• 81138838030140 is an abundant number, because the sum of its proper divisors (181399582435524) is greater than itself. Its abundance is 100260744405384

Bases of 81138838030140

• Binary: 10010011100101110011011100111100100011100111100₂
• Hexadecimal: 0x49CB9B9E473C
• Base-36: SREO17XOC

Squares and roots of 81138838030140

• 81138838030140 squared (81138838030140²) is 6583511036881293155548419600
• 81138838030140 cubed (81138838030140³) is 534178435691150293230154194788654166744000
• The square root of 81138838030140 is 9007709.9215139027
• The cube root of 81138838030140 is 43292.1938736105

Scales and comparisons

• 81,138,838,030,140 seconds is equal to 2,579,964 years, 3 weeks, 4 days, 15 hours, 29 minutes.
• To count from 1 to 81,138,838,030,140 would take you about six million, four hundred forty-nine thousand, nine hundred ten 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 81138838030140 cubic inches would be around 3607.7 feet tall.

Recreational maths with 81138838030140

• 81138838030140 backwards is 04103083883118
• The number of decimal digits it has is: 14
• The sum of 81138838030140's digits is 48
• More coming soon!