81090738149344

Names of 81090738149344

• Cardinal: 81090738149344 can be written as Eighty-one trillion, ninety billion, seven hundred thirty-eight million, one hundred forty-nine thousand, three hundred forty-four.

Scientific notation

• Scientific notation: 8.1090738149344 × 10¹³

Factors of 81090738149344

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 350

Divisors of 81090738149344

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 44 49 56 61 77 88 98 112 121 122 154 176 196 224 242 244 269 308 343 352 392 427 484 488 538 539 616 671 686 784 847 854 968 976 1076 1078 1232 1342 1372 1568 1694 1708 1883 1936 1952 2152 2156 2464 2684 2744 2959 2989 3388 3416 3721 3766 3773 3872 4304 4312 4697 5368 5488 5918 5929 5978 6776 6832 7381 7442 7532 7546 8608 8624 9394 10736 10976 11836 11858 11956 13181 13552 13664 14762 14884 15064 15092 16409 17248 18788 20713 20923 21472 23672 23716 23912 26047 26362 27104 29524 29768 30128 30184 32549 32818 32879 37576 40931 41426 41503 41846 47344 47432 47824 51667 52094 52724 59048 59536 60256 60368 65098 65636 65758 75152 81862 82852 83006 83692 92267 94688 94864 95648 103334 104188 105448 114863 118096 119072 120736 130196 131272 131516 144991 150304 163724 165704 166012 167384 180499 182329 184534 189728 206668 208376 210896 226981 227843 229726 230153 236192 260392 262544 263032 286517 289982 327448 331408 332024 334768 360998 361669 364658 369068 413336 416752 421792 450241 453962 455686 459452 460306 520784 525088 526064 573034 579964 654896 662816 664048 669536 721996 723338 729316 738136 804041 826672 833504 900482 907924 911372 918904 920612 1000949 1014937 1041568 1052128 1146068 1159928 1263493 1276303 1309792 1328096 1443992 1446676 1458632 1476272 1588867 1594901 1608082 1653344 1800964 1815848 1822744 1837808 1841224 1985489 2001898 2005619 2029874 2292136 2319856 2496791 2526986 2531683 2552606 2887984 2893352 2917264 2952544 3151687 3177734 3189802 3216164 3601928 3631696 3645488 3675616 3682448 3970978 4003796 4011238 4059748 4584272 4639712 4993582 5053972 5063366 5105212 5628287 5775968 5786704 5834528 6303374 6355468 6379604 6432328 7006643 7203856 7263392 7290976 7364896 7941956 8007592 8022476 8119496 8844451 9168544 9987164 10107944 10126732 10210424 11010439 11122069 11164307 11256574 11573408 12606748 12710936 12759208 12864656 13898423 14013286 14039333 14407712 15883912 16015184 16044952 16238992 17477537 17688902 19974328 20215888 20253464 20420848 22020878 22061809 22244138 22328614 22513148 25213496 25421872 25518416 25729312 27464701 27796846 28026572 28078666 31767824 32030368 32089904 32477984 34955074 35377804 39948656 40431776 40506928 40841696 44041756 44123618 44488276 44657228 45026296 49046501 50426992 50843744 51036832 54929402 55593692 56053144 56157332 61057889 61911157 63535648 64179808 69910148 70755608 77073073 77854483 79897312 81013856 88083512 88247236 88976552 89314456 90052592 97288961 98093002 100853984 109858804 111187384 112106288 112314664 121114829 122115778 122342759 123822314 139820296 141511216 154146146 154432663 155708966 176167024 176494472 177953104 178628912 180105184 192252907 194577922 196186004 219717608 222374768 224212576 224629328 242229658 244231556 244685518 247644628 279640592 283022432 308292292 308865326 311417932 343325507 352334048 352988944 355906208 357257824 384505814 389155844 392372008 427405223 439435216 444749536 449258656 484459316 488463112 489371036 495289256 539511511 559281184 616584584 617730652 622835864 671636779 681022727 686651014 705977888 769011628 778311688 784744016 847803803 854810446 856399313 878870432 968918632 976926224 978742072 990578512 1079023022 1233169168 1235461304 1245671728 1343273558 1345770349 1362045454 1373302028 1538023256 1556623376 1569488032 1695607606 1709620892 1712798626 1937837264 1953852448 1957484144 1981157024 2158046044 2466338336 2470922608 2491343456 2686547116 2691540698 2724090908 2746604056 2991836561 3076046512 3113246752 3391215212 3419241784 3425597252 3776580577 3875674528 3914968288 4316092088 4701457453 4941845216 5373094232 5383081396 5448181816 5493208112 5934626621 5983673122 6152093024 6782430424 6838483568 6851194504 7388004569 7553161154 8632184176 9402914906 9420392443 10746188464 10766162792 10896363632 10986416224 11869253242 11967346244 13564860848 13676967136 13702389008 14776009138 15106322308 17264368352 18805829812 18840784886 20942855927 21492376928 21532325584 21792727264 23738506484 23934692488 27129721696 27404778016 29552018276 30212644616 32910202171 37611659624 37681569772 41542386347 41885711854 43064651168 47477012968 47869384976 51716031983 59104036552 60425289232 65820404342 75223319248 75363139544 83084772694 83771423708 94954025936 95738769952 103432063966 118208073104 120850578464 131640808684 150446638496 150726279088 166169545388 167542847416 189908051872 206864127932 230371415197 236416146208 263281617368 301452558176 332339090776 335085694832 362012223881 413728255864 460742830394 526563234736 664678181552 670171389664 724024447762 827456511728 921485660788 1053126469472 1329356363104 1448048895524 1654913023456 1842971321576 2534085567167 2896097791048 3685942643152 5068171134334 5792195582096 7371885286304 10136342268668 11584391164192 20272684537336 40545369074672 81090738149344
• Sum of all divisors σ(n): 208825728048000
• Sum of proper divisors (its aliquot sum) s(n): 127734989898656
• 81090738149344 is an abundant number, because the sum of its proper divisors (127734989898656) is greater than itself. Its abundance is 46644251749312

Bases of 81090738149344

• Binary: 10010011100000001101000101001000101011111100000₂
• Hexadecimal: 0x49C068A457E0
• Base-36: SQSKJSK4G

Squares and roots of 81090738149344

• 81090738149344 squared (81090738149344²) is 6575707813605474374047630336
• 81090738149344 cubed (81090738149344³) is 533229000459676865546706356015197272899584
• The square root of 81090738149344 is 9005039.5973223793
• The cube root of 81090738149344 is 43283.6375068123

Scales and comparisons

• 81,090,738,149,344 seconds is equal to 2,578,434 years, 33 weeks, 3 days, 1 hour, 29 minutes, 4 seconds.
• To count from 1 to 81,090,738,149,344 would take you about six million, four hundred forty-six thousand and eighty-six 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 81090738149344 cubic inches would be around 3607 feet tall.

Recreational maths with 81090738149344

• 81090738149344 backwards is 44394183709018
• 81090738149344 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81090738149344's digits is 61
• More coming soon!