81376442634240

Names of 81376442634240

• Cardinal: 81376442634240 can be written as Eighty-one trillion, three hundred seventy-six billion, four hundred forty-two million, six hundred thirty-four thousand, two hundred forty.

Scientific notation

• Scientific notation: 8.137644263424 × 10¹³

Factors of 81376442634240

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 105202

Divisors of 81376442634240

• Number of divisors d(n): 1248
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 17 18 19 20 24 26 30 32 34 36 38 39 40 45 48 51 52 57 60 64 65 68 72 76 78 80 85 90 95 96 102 104 114 117 120 128 130 136 144 152 153 156 160 170 171 180 190 192 195 204 208 221 228 234 240 247 255 256 260 272 285 288 304 306 312 320 323 340 342 360 380 384 390 408 416 442 456 468 480 494 510 512 520 544 570 576 585 608 612 624 640 646 663 680 684 720 741 760 765 768 780 816 832 855 884 912 936 960 969 988 1020 1024 1040 1088 1105 1140 1152 1170 1216 1224 1235 1248 1280 1292 1326 1360 1368 1440 1482 1520 1530 1536 1560 1615 1632 1664 1710 1768 1824 1872 1920 1938 1976 1989 2040 2048 2080 2176 2210 2223 2280 2304 2340 2432 2448 2470 2496 2560 2584 2652 2720 2736 2880 2907 2964 3040 3060 3072 3120 3230 3264 3315 3328 3420 3536 3648 3705 3744 3840 3876 3952 3978 4080 4096 4160 4199 4352 4420 4446 4560 4608 4680 4845 4864 4896 4940 4992 5120 5168 5304 5440 5472 5760 5814 5928 6080 6120 6144 6240 6460 6528 6630 6656 6840 7072 7296 7410 7488 7680 7752 7904 7956 8160 8320 8398 8704 8840 8892 9120 9216 9360 9690 9728 9792 9880 9945 9984 10240 10336 10608 10880 10944 11115 11520 11628 11856 12160 12240 12288 12480 12597 12920 13056 13260 13312 13680 14144 14535 14592 14820 14976 15360 15504 15808 15912 16320 16640 16796 17408 17680 17784 18240 18432 18720 19380 19456 19584 19760 19890 19968 20480 20672 20995 21216 21760 21888 22230 23040 23256 23712 24320 24480 24960 25194 25840 26112 26520 26624 27360 28288 29070 29184 29640 29952 30720 31008 31616 31824 32640 33280 33592 34816 35360 35568 36480 36864 37440 37791 38760 38912 39168 39520 39780 39936 41344 41990 42432 43520 43776 44460 46080 46512 47424 48640 48960 49920 50388 51680 52224 53040 53248 54720 56576 58140 58368 59280 59904 61440 62016 62985 63232 63648 65280 66560 67184 69632 70720 71136 72960 74880 75582 77520 77824 78336 79040 79560 79872 82688 83980 84864 87040 87552 88920 92160 93024 94848 97280 97920 99840 100776 103360 104448 105143 106080 109440 113152 116280 116736 118560 119808 124032 125970 126464 127296 130560 133120 134368 141440 142272 145920 149760 151164 155040 156672 158080 159120 159744 165376 167960 169728 174080 175104 177840 184320 186048 188955 189696 194560 195840 199680 201552 206720 208896 210286 212160 218880 226304 232560 233472 237120 239616 248064 251940 252928 254592 261120 266240 268736 282880 284544 291840 299520 302328 310080 313344 315429 316160 318240 330752 335920 339456 348160 350208 355680 372096 377910 379392 389120 391680 399360 403104 413440 420572 424320 437760 452608 465120 474240 479232 496128 503880 505856 509184 522240 525715 537472 565760 569088 583680 599040 604656 620160 626688 630858 632320 636480 661504 671840 678912 700416 711360 744192 755820 758784 783360 798720 806208 826880 841144 848640 875520 905216 930240 946287 948480 992256 1007760 1011712 1018368 1044480 1051430 1074944 1131520 1138176 1167360 1198080 1209312 1240320 1261716 1264640 1272960 1323008 1343680 1357824 1366859 1422720 1488384 1511640 1517568 1566720 1577145 1612416 1653760 1682288 1697280 1751040 1787431 1860480 1892574 1896960 1984512 1997717 2015520 2036736 2102860 2149888 2263040 2276352 2396160 2418624 2480640 2523432 2529280 2545920 2687360 2715648 2733718 2845440 2976768 3023280 3035136 3133440 3154290 3224832 3307520 3364576 3394560 3502080 3574862 3720960 3785148 3793920 3969024 3995434 4031040 4073472 4100577 4205720 4299776 4526080 4552704 4731435 4837248 4961280 5046864 5058560 5091840 5362293 5374720 5467436 5690880 5953536 5993151 6046560 6308580 6449664 6615040 6729152 6789120 6834295 7149724 7441920 7570296 7587840 7990868 8062080 8146944 8201154 8411440 8599552 8937155 9105408 9462870 9674496 9922560 9988585 10093728 10183680 10724586 10749440 10934872 11381760 11907072 11986302 12093120 12301731 12617160 12899328 13458304 13578240 13668590 14299448 14883840 15140592 15175680 15981736 16086879 16124160 16402308 16822880 17199104 17874310 17979453 18925740 19348992 19845120 19977170 20187456 20367360 20502885 21449172 21498880 21869744 22763520 23236603 23972604 24186240 24603462 25234320 25798656 25970321 26811465 26916608 27337180 28598896 29767680 29965755 30281184 31963472 32173758 32248320 32804616 33645760 33961189 35748620 35958906 37851480 38697984 39954340 40374912 40734720 41005770 42898344 42997760 43739488 45527040 46473206 47945208 48372480 49206924 50468640 51597312 51940642 53622930 53833216 54674360 57197792 59535360 59931510 60562368 61508655 63926944 64347516 64496640 65609232 67291520 67922378 69709809 71497240 71917812 75702960 77395968 77910963 79908680 80434395 80749824 82011540 85796688 85995520 87478976 89897265 92946412 95890416 96744960 98413848 100937280 101883567 103881284 107245860 107666432 109348720 114395584 116183015 119863020 121124736 123017310 127853888 128695032 128993280 129851605 131218464 134583040 135844756 139419618 142994480 143835624 151405920 154791936 155821926 159817360 160868790 161499648 164023080 169805945 171593376 174957952 179794530 185892824 191780832 193489920 196827696 201874560 203767134 207762568 209129427 214491720 215332864 218697440 228791168 232366030 233732889 239726040 242249472 246034620 255707776 257390064 257986560 259703210 262436928 269166080 271689512 278839236 285988960 287671248 302811840 305650701 311643852 319634720 321737580 322999296 328046160 339611890 343186752 348549045 349915904 359589060 371785648 383561664 386979840 389554815 393655392 403749120 407534268 415525136 418258854 428983440 430665728 437394880 441495457 457582336 464732060 467465778 479452080 484498944 492069240 509417835 511415552 514780128 519406420 524873856 538332160 543379024 557678472 571977920 575342496 605623680 611301402 623287704 639269440 643475160 645998592 656092320 679223780 686373504 697098090 699831808 719178120 743571296 767123328 773959680 779109630 787310784 807498240 815068536 831050272 836517708 857966880 874789760 882990914 915164672 929464120 934931556 958904160 968997888 984138480 1018835670 1022831104 1029560256 1038812840 1045647135 1049747712 1076664320 1086758048 1115356944 1143955840 1150684992 1168664445 1211247360 1222602804 1246575408 1278538880 1286950320 1291997184 1312184640 1324486371 1358447560 1372747008 1394196180 1399663616 1438356240 1487142592 1528253505 1534246656 1558219260 1574621568 1614996480 1630137072 1662100544 1673035416 1715933760 1749579520 1765981828 1830329344 1858928240 1869863112 1917808320 1937995776 1968276960 2037671340 2045662208 2059120512 2077625680 2091294270 2099495424 2153328640 2173516096 2207477285 2230713888 2287911680 2301369984 2337328890 2422494720 2445205608 2493150816 2557077760 2573900640 2624369280 2648972742 2716895120 2745494016 2788392360 2799327232 2876712480 2974285184 3056507010 3068493312 3116438520 3149243136 3229992960 3260274144 3324201088 3346070832 3431867520 3499159040 3531963656 3660658688 3717856480 3739726224 3835616640 3875991552 3936553920 3973459113 4075342680 4091324416 4118241024 4155251360 4182588540 4198990848 4347032192 4414954570 4461427776 4575823360 4602739968 4674657780 4844989440 4890411216 4986301632 5114155520 5147801280 5248738560 5297945484 5433790240 5490988032 5576784720 5598654464 5753424960 5948570368 6113014020 6136986624 6232877040 6298486272 6459985920 6520548288 6622431855 6648402176 6692141664 6863735040 6998318080 7063927312 7321317376 7435712960 7479452448 7671233280 7873107840 7946918226 8150685360 8182648832 8236482048 8310502720 8365177080 8397981696 8694064384 8829909140 8922855552 9151646720 9205479936 9349315560 9689978880 9780822432 9972603264 10228311040 10295602560 10497477120 10595890968 10867580480 10981976064 11153569440 11506849920 11897140736 12226028040 12273973248 12465754080 12596972544 13041096576 13244863710 13296804352 13384283328 13727470080 13996636160 14127854624 14871425920 14958904896 15342466560 15746215680 15893836452 16301370720 16472964096 16621005440 16730354160 16795963392 17388128768 17659818280 17845711104 18303293440 18410959872 18698631120 19379957760 19561644864 19867295565 19945206528 20456622080 20591205120 20994954240 21191781936 21735160960 21963952128 22307138880 23013699840 23794281472 24452056080 24547946496 24931508160 25193945088 26082193152 26489727420 26593608704 26768566656 27454940160 27993272320 28255709248 29742851840 29917809792 30684933120 31492431360 31787672904 32602741440 32945928192 33242010880 33460708320 34776257536 35319636560 35691422208 36606586880 36821919744 37397262240 39123289728 39734591130 39890413056 40913244160 41182410240 41989908480 42383563872 43470321920 44614277760 46027399680 47588562944 48904112160 49863016320 50387890176 52164386304 52979454840 53187217408 53537133312 54909880320 56511418496 59485703680 59835619584 61369866240 62984862720 63575345808 65205482880 65891856384 66484021760 66921416640 69552515072 70639273120 71382844416 73643839488 74794524480 78246579456 79469182260 79780826112 82364820480 83979816960 84767127744 86940643840 89228555520 92054799360 95177125888 97808224320 99726032640 104328772608 105958909680 106374434816 107074266624 109819760640 113022836992 118971407360 119671239168 122739732480 125969725440 127150691616 130410965760 132968043520 133842833280 139105030144 141278546240 142765688832 149589048960 156493158912 158938364520 159561652224 164729640960 169534255488 173881287680 178457111040 184109598720 195616448640 199452065280 208657545216 211917819360 214148533248 226045673984 237942814720 239342478336 251939450880 254301383232 260821931520 265936087040 267685666560 282557092480 285531377664 299178097920 312986317824 317876729040 319123304448 329459281920 339068510976 347762575360 356914222080 368219197440 391232897280 398904130560 417315090432 423835638720 428297066496 452091347968 475885629440 478684956672 508602766464 521643863040 531872174080 535371333120 565114184960 598356195840 625972635648 635753458080 678137021952 695525150720 713828444160 782465794560 797808261120 847671277440 856594132992 904182695936 957369913344 1017205532928 1043287726080 1070742666240 1130228369920 1196712391680 1251945271296 1271506916160 1356274043904 1427656888320 1564931589120 1595616522240 1695342554880 1808365391872 2034411065856 2086575452160 2141485332480 2260456739840 2393424783360 2543013832320 2712548087808 3129863178240 3390685109760 4068822131712 4282970664960 4520913479680 4786849566720 5086027664640 5425096175616 6259726356480 6781370219520 8137644263424 9041826959360 10172055329280 13562740439040 16275288526848 20344110658560 27125480878080 40688221317120 81376442634240
• Sum of all divisors σ(n): 338568508212480
• Sum of proper divisors (its aliquot sum) s(n): 257192065578240
• 81376442634240 is an abundant number, because the sum of its proper divisors (257192065578240) is greater than itself. Its abundance is 175815622944000

Bases of 81376442634240

• Binary: 10010100000001011101101111101001101000000000000₂
• Hexadecimal: 0x4A02EDF4D000
• Base-36: SUFTKV7K0

Squares and roots of 81376442634240

• 81376442634240 squared (81376442634240²) is 6622125415803753550420377600
• 81376442634240 cubed (81376442634240³) is 538885009015896857897450585203119489024000
• The square root of 81376442634240 is 9020889.2374443885
• The cube root of 81376442634240 is 43334.4112231845

Scales and comparisons

• 81,376,442,634,240 seconds is equal to 2,587,519 years, 8 weeks, 2 days, 22 hours, 24 minutes.
• To count from 1 to 81,376,442,634,240 would take you about six million, four hundred sixty-eight thousand, seven 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 81376442634240 cubic inches would be around 3611.2 feet tall.

Recreational maths with 81376442634240

• 81376442634240 backwards is 04243624467318
• The number of decimal digits it has is: 14
• The sum of 81376442634240's digits is 54
• More coming soon!