81337257644832

Names of 81337257644832

• Cardinal: 81337257644832 can be written as Eighty-one trillion, three hundred thirty-seven billion, two hundred fifty-seven million, six hundred forty-four thousand, eight hundred thirty-two.

Scientific notation

• Scientific notation: 8.1337257644832 × 10¹³

Factors of 81337257644832

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 122

Divisors of 81337257644832

• Number of divisors d(n): 810
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 31 32 36 42 48 49 56 62 63 72 79 84 93 96 98 112 124 126 144 147 158 168 186 196 217 224 237 248 252 279 288 294 316 336 372 392 434 441 474 496 504 553 558 588 632 651 672 711 744 784 868 882 948 961 992 1008 1106 1116 1176 1264 1302 1422 1488 1519 1568 1659 1736 1764 1896 1922 1953 2016 2212 2232 2352 2449 2528 2604 2844 2883 2976 3038 3318 3472 3528 3792 3844 3871 3906 4424 4464 4557 4704 4898 4977 5208 5688 5766 6076 6241 6636 6727 6944 7056 7347 7584 7688 7742 7812 8649 8848 8928 9114 9796 9954 10416 11376 11532 11613 12152 12482 13272 13454 13671 14112 14694 15376 15484 15624 17143 17298 17696 18228 18723 19592 19908 20181 20832 22041 22752 23064 23226 24304 24964 26544 26908 27342 29388 29791 30752 30968 31248 34286 34596 34839 36456 37446 39184 39816 40362 43687 44082 46128 46452 47089 48608 49928 51429 53088 53816 54684 56169 58776 59582 60543 61936 62496 68572 69192 69678 72912 74892 75919 78368 79632 80724 87374 88164 89373 92256 92904 94178 99856 102858 107632 109368 112338 117552 119164 120001 121086 123872 131061 137144 138384 139356 141267 145824 149784 151838 154287 159264 161448 174748 176328 178746 185808 188356 193471 199712 205716 208537 215264 218736 224676 227757 235104 238328 240002 242172 262122 268119 274288 276768 278712 282534 299568 303676 305809 308574 322896 349496 352656 357492 360003 371616 376712 386942 393183 411432 417074 423801 437472 449352 455514 476656 480004 484344 524244 531433 536238 548576 557424 565068 580413 599136 607352 611618 617148 625611 645792 683271 698992 705312 714984 720006 753424 773884 786366 822864 834148 847602 898704 911028 917427 923521 953312 960008 968688 1048488 1062866 1072476 1080009 1114848 1130136 1160826 1214704 1223236 1234296 1251222 1354297 1366542 1397984 1429968 1440012 1459759 1506848 1547768 1572732 1594299 1645728 1668296 1695204 1741239 1797408 1822056 1834854 1847042 1876833 1920016 1937376 2096976 2125732 2144952 2160018 2260272 2321652 2353489 2429408 2446472 2468592 2502444 2708594 2733084 2752281 2770563 2859936 2880024 2919518 3095536 3145464 3188598 3336592 3390408 3482478 3644112 3669708 3694084 3720031 3753666 3840032 4062891 4193952 4251464 4289904 4320036 4379277 4520544 4643304 4706978 4782897 4892944 4937184 5004888 5417188 5466168 5504562 5541126 5760048 5839036 5997601 6191072 6290928 6377196 6464647 6673184 6780816 6964956 7060467 7288224 7339416 7388168 7440062 7507332 8125782 8311689 8502928 8579808 8640072 8758554 9286608 9413956 9480079 9565794 9785888 10009776 10834376 10932336 11009124 11082252 11160093 11520096 11678072 11995202 12188673 12581856 12754392 12929294 13137831 13561632 13929912 14120934 14678832 14776336 14880124 15014664 16251564 16474423 16623378 17005856 17280144 17517108 17992803 18573216 18827912 18960158 19131588 19393941 20019552 21181401 21668752 21864672 22018248 22164504 22320186 23356144 23990404 24377346 25508784 25858588 26275662 27859824 28241868 28440237 29357664 29552672 29760248 30029328 32503128 32948846 33246756 33480279 34560288 35034216 35985606 37655824 37920316 38263176 38787882 41983207 42362802 43337504 44036496 44329008 44640372 45252529 46712288 47980808 48754692 49423269 51017568 51717176 52551324 53978409 55719648 56483736 56880474 58181823 59520496 60058656 65006256 65897692 66493512 66960558 70068432 71971212 72958159 75311648 75840632 76526352 77575764 83966414 84725604 85320711 88072992 88658016 89280744 90505058 95961616 97509384 98846538 103434352 105102648 107956818 112967472 113760948 115320961 116363646 119040992 125949621 130012512 131795384 132987024 133921116 135757587 140136864 143942424 145916318 148269807 151681264 153052704 155151528 167932828 169451208 170641422 178561488 181010116 185925631 191923232 195018768 197693076 206868704 210205296 215913636 218874477 225934944 227521896 230641922 232727292 251899242 263590768 265974048 267842232 271515174 287884848 291832636 293882449 296539614 303362528 310303056 335865656 338902416 341282844 345962883 357122976 362020232 371851262 377848863 390037536 395386152 407272761 420410592 431827272 437748954 455043792 461283844 465454584 503798484 510707113 527181536 535684464 543030348 557776893 575769696 583665272 587764898 593079228 620606112 656623431 671731312 677804832 682565688 691925766 724040464 743702524 755697726 790772304 814545522 863654544 875497908 881647347 910087584 922567688 930909168 1007596968 1021414226 1037888649 1071368928 1086060696 1115553786 1167330544 1175529796 1186158456 1301479417 1313246862 1343462624 1365131376 1383851532 1448080928 1487405048 1511395452 1532121339 1581544608 1629091044 1673330679 1727309088 1750995816 1763294694 1845135376 1861818336 2015193936 2042828452 2075777298 2172121392 2231107572 2334661088 2351059592 2372316912 2602958834 2626493724 2644942041 2730262752 2767703064 2974810096 3022790904 3064242678 3258182088 3346661358 3501991632 3526589388 3574949791 3690270752 3904438251 4030387872 4085656904 4151554596 4344242784 4462215144 4596364017 4702119184 4744633824 5205917668 5252987448 5289884082 5535406128 5763694561 5949620192 6045581808 6128485356 6516364176 6693322716 7003983264 7053178776 7149899582 7808876502 8171313808 8303109192 8924430288 9110355919 9192728034 9404238368 10411835336 10505974896 10579768164 10724849373 11070812256 11527389122 11713314753 12091163616 12256970712 13032728352 13386645432 14106357552 14299799164 15617753004 16342627616 16606218384 17291083683 17848860576 18220711838 18385456068 20823670672 21011949792 21159536328 21449698746 23054778244 23426629506 24513941424 26773290864 27331067757 28212715104 28599598328 31235506008 32174548119 33212436768 34582167366 36441423676 36770912136 40345861927 41647341344 42319072656 42899397492 46109556488 46853259012 49027882848 51873251049 53546581728 54662135514 57199196656 62471012016 64349096238 69164334732 72882847352 73541824272 80691723854 81993203271 84638145312 85798794984 92219112976 93706518024 103746502098 109324271028 114398393312 121037585781 124942024032 128698192476 138328669464 145765694704 147083648544 161383447708 163986406542 171597589968 184438225952 187413036048 207493004196 218648542056 242075171562 257396384952 276657338928 282421033489 291531389408 322766895416 327972813084 343195179936 363112757343 374826072096 414986008392 437297084112 484150343124 514792769904 553314677856 564842066978 645533790832 655945626168 726225514686 829972016784 847263100467 874594168224 968300686248 1029585539808 1129684133956 1291067581664 1311891252336 1452451029372 1659944033568 1694526200934 1936601372496 2259368267912 2541789301401 2623782504672 2904902058744 3389052401868 3873202744992 4518736535824 5083578602802 5809804117488 6778104803736 9037473071648 10167157205604 11619608234976 13556209607472 20334314411208 27112419214944 40668628822416 81337257644832
• Sum of all divisors σ(n): 281599414211115
• Sum of proper divisors (its aliquot sum) s(n): 200262156566283
• 81337257644832 is an abundant number, because the sum of its proper divisors (200262156566283) is greater than itself. Its abundance is 118924898921451

Bases of 81337257644832

• Binary: 10010011111100111001110010110010101001100100000₂
• Hexadecimal: 0x49F9CE595320
• Base-36: STXTJ4W80

Squares and roots of 81337257644832

• 81337257644832 squared (81337257644832²) is 6615749481181781627456308224
• 81337257644832 cubed (81337257644832³) is 538106920064546205399702608682607712698368
• The square root of 81337257644832 is 9018717.0731114523
• The cube root of 81337257644832 is 43327.4545372089

Scales and comparisons

• 81,337,257,644,832 seconds is equal to 2,586,273 years, 10 weeks, 2 days, 23 hours, 7 minutes, 12 seconds.
• To count from 1 to 81,337,257,644,832 would take you about six million, four hundred sixty-five thousand, six hundred eighty-three 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 81337257644832 cubic inches would be around 3610.6 feet tall.

Recreational maths with 81337257644832

• 81337257644832 backwards is 23844675273318
• 81337257644832 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81337257644832's digits is 63
• More coming soon!