81315438730800

Names of 81315438730800

• Cardinal: 81315438730800 can be written as Eighty-one trillion, three hundred fifteen billion, four hundred thirty-eight million, seven hundred thirty thousand, eight hundred.

Scientific notation

• Scientific notation: 8.13154387308 × 10¹³

Factors of 81315438730800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 239

Divisors of 81315438730800

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 19 20 24 25 30 38 40 48 50 57 60 73 75 76 80 95 100 114 120 137 146 150 152 190 200 219 228 240 274 285 292 300 304 361 365 380 400 411 438 456 475 548 570 584 600 685 722 730 760 822 876 912 950 1083 1095 1096 1140 1168 1200 1370 1387 1425 1444 1460 1520 1644 1752 1805 1825 1900 2055 2166 2190 2192 2280 2603 2740 2774 2850 2888 2920 3288 3425 3504 3610 3650 3800 4110 4161 4332 4380 4560 5206 5415 5475 5480 5548 5700 5776 5840 6576 6850 6935 7220 7300 7600 7809 8220 8322 8664 8760 9025 10001 10275 10412 10830 10950 10960 11096 11400 13015 13700 13870 14440 14600 15618 16440 16644 17328 17520 18050 18769 20002 20550 20805 20824 21660 21900 22192 22800 26030 26353 27075 27400 27740 28880 29200 30003 31236 32880 33288 34675 36100 37538 39045 40004 41100 41610 41648 43320 43800 49457 50005 52060 52706 54150 54800 55480 56307 60006 62472 65075 66576 69350 72200 75076 78090 79059 80008 82200 83220 86640 87600 93845 98914 100010 104025 104120 105412 108300 110960 112614 120012 124944 130150 131765 138700 144400 148371 150015 150152 156180 158118 160016 164400 166440 187690 190019 195225 197828 200020 208050 208240 210824 216600 225228 240024 247285 250025 260300 263530 277400 281535 296742 300030 300304 312360 316236 332880 356611 375380 380038 390450 395295 395656 400040 416100 421648 433200 450456 469225 480048 494570 500050 520600 527060 554800 563070 570057 593484 600060 624720 632472 658825 713222 741855 750075 750760 760076 780900 790590 791312 800080 832200 900912 938450 950095 989140 1000100 1041200 1054120 1069833 1126140 1140114 1186968 1200120 1236425 1264944 1317650 1370137 1407675 1426444 1483710 1500150 1501520 1520152 1561800 1581180 1664400 1783055 1876900 1900190 1976475 1978280 2000200 2108240 2139666 2252280 2280228 2373936 2400240 2472850 2571353 2635300 2740274 2815350 2850285 2852888 2967420 3000300 3040304 3123600 3162360 3566110 3610361 3709275 3753800 3800380 3952950 3956560 4000400 4110411 4279332 4504560 4560456 4750475 4945700 5142706 5270600 5349165 5480548 5630700 5700570 5705776 5934840 6000600 6324720 6775609 6850685 7132220 7220722 7418550 7507600 7600760 7714059 7905900 8220822 8558664 8915275 9120912 9500950 9891400 10285412 10541200 10698330 10831083 10961096 11261400 11401140 11869680 12001200 12856765 13551218 13701370 14251425 14264440 14441444 14837100 15201520 15428118 15811800 16441644 17117328 17830550 18051805 19001900 19782800 20326827 20552055 20570824 21396660 21662166 21922192 22522800 22802280 25713530 26032603 26745825 27102436 27402740 28502850 28528880 28882888 29674200 30856236 31623600 32883288 33878045 34253425 35661100 36103610 38003800 38570295 40653654 41104110 41141648 42793320 43324332 45604560 48855707 51427060 52065206 53491650 54155415 54204872 54805480 57005700 57765776 59348400 61712472 64283825 65766576 67756090 68506850 71322200 72207220 76007600 77140590 78097809 81307308 82208220 85586640 86648664 90259025 97711414 101634135 102760275 102854120 104130412 106983300 108310830 108409744 109610960 114011400 123424944 128567650 130163015 135512180 137013700 142644400 144414440 146567121 154281180 156195618 162614616 164416440 169390225 173297328 180518050 187708769 192851475 195422828 203268270 205520550 205708240 208260824 213966600 216621660 228022800 244278535 257135300 260326030 270777075 271024360 274027400 288828880 293134242 308562360 312391236 325229232 328832880 338780450 361036100 375417538 385702950 390489045 390845656 406536540 411041100 416521648 427933200 433243320 488557070 494619457 508170675 514270600 520652060 541554150 542048720 548054800 563126307 586268484 617124720 624782472 650815075 677560900 722072200 732835605 750835076 771405900 780978090 781691312 813073080 822082200 866486640 928258433 938543845 977114140 989238914 1016341350 1028541200 1041304120 1083108300 1126252614 1172536968 1221392675 1249564944 1301630150 1355121800 1444144400 1465671210 1483858371 1501670152 1542811800 1561956180 1626146160 1644164400 1856516866 1877087690 1952445225 1954228280 1978477828 2032682700 2082608240 2166216600 2252505228 2345073936 2442785350 2473097285 2603260300 2710243600 2784775299 2815631535 2931342420 2967716742 3003340304 3085623600 3123912360 3566466611 3664178025 3713033732 3754175380 3904890450 3908456560 3956955656 4065365400 4332433200 4505010456 4641292165 4692719225 4885570700 4946194570 5206520600 5569550598 5631263070 5862684840 5935433484 6247824720 7132933222 7328356050 7419291855 7426067464 7508350760 7809780900 7913911312 8130730800 9010020912 9282584330 9385438450 9771141400 9892389140 10413041200 10699399833 11139101196 11262526140 11725369680 11870866968 12365486425 13923876495 14078157675 14265866444 14656712100 14838583710 14852134928 15016701520 15619561800 17832333055 18565168660 18770876900 19542282800 19784778280 21398799666 22278202392 22525052280 23206460825 23741733936 24730972850 27847752990 28156315350 28531732888 29313424200 29677167420 31239123600 35664666110 37096459275 37130337320 37541753800 39569556560 42797599332 44556404784 45050104560 46412921650 49461945700 53496999165 55695505980 56312630700 57063465776 58626848400 59354334840 67762865609 69619382475 71329332220 74192918550 74260674640 75083507600 85595198664 89161665275 92825843300 98923891400 106993998330 111391011960 112625261400 118708669680 135525731218 139238764950 142658664440 148385837100 171190397328 178323330550 185651686600 197847782800 203288596827 213987996660 222782023920 225250522800 267484995825 271051462436 278477529900 285317328880 296771674200 338814328045 356646661100 371303373200 406577193654 427975993320 534969991650 542102924872 556955059800 593543348400 677628656090 713293322200 813154387308 855951986640 1016442984135 1069939983300 1084205849744 1113910119600 1355257312180 1426586644400 1626308774616 1694071640225 2032885968270 2139879966600 2710514624360 3252617549232 3388143280450 4065771936540 4279759933200 5082214920675 5421029248720 6776286560900 8131543873080 10164429841350 13552573121800 16263087746160 20328859682700 27105146243600 40657719365400 81315438730800
• Sum of all divisors σ(n): 280726514451360
• Sum of proper divisors (its aliquot sum) s(n): 199411075720560
• 81315438730800 is an abundant number, because the sum of its proper divisors (199411075720560) is greater than itself. Its abundance is 118095636989760

Bases of 81315438730800

• Binary: 10010011111010010111001110101110001111000110000₂
• Hexadecimal: 0x49F4B9D71E30
• Base-36: STNSOPUEO

Squares and roots of 81315438730800

• 81315438730800 squared (81315438730800²) is 6612200575982488714868640000
• 81315438730800 cubed (81315438730800³) is 537673990812064531107603326890322112000000
• The square root of 81315438730800 is 9017507.3457580281
• The cube root of 81315438730800 is 43323.5799596077

Scales and comparisons

• 81,315,438,730,800 seconds is equal to 2,585,579 years, 22 weeks, 1 day, 5 hours, 40 minutes.
• To count from 1 to 81,315,438,730,800 would take you about six million, four hundred sixty-three thousand, nine hundred forty-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 81315438730800 cubic inches would be around 3610.3 feet tall.

Recreational maths with 81315438730800

• 81315438730800 backwards is 00803783451318
• The number of decimal digits it has is: 14
• The sum of 81315438730800's digits is 51
• More coming soon!