81329071866042

Names of 81329071866042

• Cardinal: 81329071866042 can be written as Eighty-one trillion, three hundred twenty-nine billion, seventy-one million, eight hundred sixty-six thousand and forty-two.

Scientific notation

• Scientific notation: 8.1329071866042 × 10¹³

Factors of 81329071866042

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1087

Divisors of 81329071866042

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 6 7 11 13 14 21 22 26 33 39 42 49 66 77 78 91 98 121 127 143 147 154 182 231 242 254 273 286 294 337 343 363 381 429 462 539 546 587 637 674 686 726 762 847 858 889 1001 1011 1029 1078 1174 1274 1397 1573 1617 1651 1694 1761 1778 1911 2002 2022 2058 2359 2541 2667 2794 3003 3146 3234 3302 3522 3707 3773 3822 4109 4191 4381 4459 4718 4719 4953 5082 5334 5929 6006 6223 6457 7007 7077 7414 7546 7631 8218 8382 8762 8918 9438 9779 9906 11011 11121 11319 11557 11858 12327 12446 12914 13143 13377 14014 14154 15262 15367 16513 17787 18161 18669 19371 19558 21021 22022 22242 22638 22893 23114 24654 25949 26286 26754 28763 29337 30667 30734 33026 33033 34671 35574 36322 37338 38742 40777 41503 42042 42799 43561 45199 45786 46101 48191 49049 49539 51898 53417 54483 57526 58674 61334 66066 68453 69342 71027 74549 77077 77847 80899 81554 83006 83941 85598 86289 87122 90398 92001 92202 96382 98098 99078 106834 107569 108966 115591 122331 124509 127127 128397 130683 135597 136906 142054 144573 147147 149098 154154 155694 160251 161798 167882 172578 181643 184002 197819 199771 201341 205359 213081 214669 215138 223647 231182 231231 242697 244662 249018 251823 254254 256794 261366 271194 285439 289146 294294 299593 316393 320502 322707 337337 346773 363286 373919 381381 395638 399542 402682 410718 426162 429338 447294 462462 470789 479171 485394 497189 503646 521843 530101 539539 544929 556387 566293 570878 587587 593457 599186 599313 604023 632786 644007 645414 674674 693546 747838 752983 762762 820039 856317 889889 898779 923351 941578 949179 958342 969137 994378 1012011 1043686 1060202 1079078 1089858 1112774 1121757 1132586 1175174 1186914 1198626 1208046 1271501 1288014 1384733 1398397 1412367 1437513 1491567 1502683 1505966 1565529 1590303 1618617 1640078 1669161 1698879 1712634 1762761 1779778 1797558 1846702 1898358 1938274 1998073 2024022 2097151 2176009 2214751 2243514 2258949 2361359 2460117 2543002 2571647 2617433 2669667 2769466 2770053 2796794 2824734 2875026 2907411 2983134 3005366 3131058 3180606 3237234 3295523 3338322 3397758 3480323 3525522 3652901 3710707 3814503 3894709 3996146 4113109 4154199 4194302 4195191 4352018 4429502 4508049 4517898 4722718 4920234 5143294 5178679 5234866 5270881 5339334 5540106 5740273 5814822 5994219 6120257 6229223 6291453 6463457 6528027 6591046 6644253 6783959 6960646 7084077 7305802 7421414 7629006 7714941 7789418 7852299 8226218 8308398 8390382 9016098 9020429 9693131 9788779 9886569 10357358 10440969 10541762 10660507 10958703 11132121 11480546 11684127 11988438 12240514 12339327 12458446 12582906 12926914 13056054 13288506 13567918 13986511 14168154 14680057 15232063 15429882 15536037 15704598 15812643 16529513 17220819 18001529 18040858 18360771 18687669 19386262 19390371 19577558 19773138 20351877 20881938 21321014 21917406 22264242 23068661 23368254 23936099 24362261 24678654 25123013 25570307 25974949 27061287 27262963 27973022 28288117 28791763 29079393 29360114 29366337 30464126 31072074 31625286 31981521 33059026 34441638 36003058 36250753 36721542 37375338 38780742 40181911 40703754 41959533 42841799 44040171 45244199 45696189 46137322 47487713 47872198 48724522 49588539 50246026 51140614 51949898 54004587 54122574 54525926 56576234 57583526 58158786 58732674 63143003 63963042 67322827 67851917 68521453 69205983 71808297 72501506 73086783 74623549 75369039 76710921 77924847 80363822 81788889 83919066 84864351 85683598 86375289 88080342 90488398 91392378 94975426 99177078 106624441 108009174 108752259 117265577 120545733 126010703 126286006 128525397 134645654 135703834 135732597 137042906 138411966 142463139 143616594 146173566 149247098 150738078 153421842 155849694 161480627 163577778 167552693 169728702 172750578 175861091 181824643 189429009 190840741 198016819 201968481 203555751 205564359 213248882 217504518 223870647 234531154 241091466 252021406 253755271 257050794 271465194 276353143 281273377 284926278 299892593 311169287 316709393 319873323 322961254 326599169 332413991 335105386 351722182 351796731 363649286 378032109 378858018 381681482 396033638 403936962 407111502 411128718 442001021 447741294 471259789 484441881 502658079 507510542 522364843 527583273 545473929 552706286 562546754 572522223 594050457 599785186 622338574 633418786 639746646 653198338 664827982 703593462 746371087 756064218 761265813 820859039 829059429 843820131 882074921 884002042 899677779 933507861 942519578 950128179 968883762 979797507 997241973 1005316158 1044729686 1055166546 1090947858 1145044446 1172868851 1188100914 1231027637 1326003063 1386117733 1413779367 1492742174 1522531626 1567094529 1641718078 1658118858 1687640262 1764149842 1776286897 1799355558 1867015722 1900256358 1934472001 1959595014 1994483946 2099248151 2178185009 2239113261 2286194183 2345737702 2462055274 2462577117 2646224763 2652006126 2772235466 2827558734 3039884573 3094007147 3134189058 3298818523 3518606553 3552573794 3592590859 3656553901 3693082911 3868944002 4158353199 4198496302 4356370018 4478226522 4572388366 4925154234 5292449526 5328860691 5746013273 5803416003 6079769146 6188014294 6297744453 6534555027 6597637046 6858582549 7037213106 7185181718 7313107802 7386165822 8210081957 8316706398 8617193459 9119653719 9282021441 9702824131 9896455569 10657721382 10777772577 10969661703 11492026546 11606832006 12595488906 13069110054 13541304007 13717165098 15247295063 16003359281 16420163914 17234386918 17238039819 18239307438 18564042882 19405648262 19792911138 21279192011 21555545154 21939323406 23091729661 24630245871 25148136013 25851580377 27082608014 29108472393 30494590126 32006718562 34476079638 39518499449 40222092911 40623912021 42558384022 45741885189 46183459322 48010077843 49260491742 50296272026 51703160754 58216944786 63837576033 69275188983 75444408039 79036998898 80444185822 81247824042 91483770378 94789128049 96020155686 106731065441 112023514967 118555498347 120666278733 127675152066 138550377966 148954344077 150888816078 176036952091 189578256098 213462130882 224047029934 237110996694 241332557466 276629496143 284367384147 297908688154 320193196323 336070544901 352073904182 446863032231 528110856273 553258992286 568734768294 640386392646 672141089802 829888488429 893726064462 1042680408539 1056221712546 1232258664637 1659776976858 1936406473001 2085360817078 2464517329274 3128041225617 3696775993911 3872812946002 5809219419003 6256082451234 7393551987822 11618438838006 13554845311007 27109690622014 40664535933021 81329071866042
• Sum of all divisors σ(n): 227365679923200
• Sum of proper divisors (its aliquot sum) s(n): 146036608057158
• 81329071866042 is an abundant number, because the sum of its proper divisors (146036608057158) is greater than itself. Its abundance is 64707536191116

Bases of 81329071866042

• Binary: 10010011111011111100110011100000100000010111010₂
• Hexadecimal: 0x49F7E67040BA
• Base-36: STU25J8VU

Squares and roots of 81329071866042

• 81329071866042 squared (81329071866042²) is 6614417930591824363992745764
• 81329071866042 cubed (81329071866042³) is 537944471229139289164300619566310770946088
• The square root of 81329071866042 is 9018263.2400059159
• The cube root of 81329071866042 is 43326.0009972723

Scales and comparisons

• 81,329,071,866,042 seconds is equal to 2,586,012 years, 47 weeks, 5 days, 3 hours, 40 minutes, 42 seconds.
• To count from 1 to 81,329,071,866,042 would take you about six million, four hundred sixty-five thousand and thirty-two 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 81329071866042 cubic inches would be around 3610.5 feet tall.

Recreational maths with 81329071866042

• 81329071866042 backwards is 24066817092318
• The number of decimal digits it has is: 14
• The sum of 81329071866042's digits is 57
• More coming soon!