81177990999040

Names of 81177990999040

• Cardinal: 81177990999040 can be written as Eighty-one trillion, one hundred seventy-seven billion, nine hundred ninety million, nine hundred ninety-nine thousand and forty.

Scientific notation

• Scientific notation: 8.117799099904 × 10¹³

Factors of 81177990999040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 3466

Divisors of 81177990999040

• Number of divisors d(n): 704
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 64 65 68 80 85 104 127 128 130 136 160 170 181 208 221 254 256 260 272 320 340 362 416 442 508 512 520 544 635 640 680 724 832 884 905 1016 1024 1040 1088 1105 1270 1280 1360 1448 1651 1664 1768 1810 2032 2080 2159 2176 2210 2353 2540 2560 2720 2896 3077 3121 3302 3328 3536 3620 4064 4160 4318 4352 4420 4706 5080 5120 5440 5792 6154 6242 6604 6656 7072 7240 8128 8255 8320 8636 8704 8840 9412 10160 10795 10880 11584 11765 12308 12484 13208 13312 14144 14480 15385 15605 16256 16510 16640 17272 17408 17680 18824 20320 21590 21760 22987 23168 23530 24616 24968 26416 28067 28288 28960 30770 31210 32512 33020 33280 34544 35360 37648 40001 40573 40640 43180 43520 45974 46336 47060 49232 49936 52832 53057 56134 56576 57920 61540 62420 65024 66040 66560 69088 70720 75296 80002 81146 81280 86360 87040 91948 92672 94120 98464 99872 105664 106114 112268 113152 114935 115840 123080 124840 130048 132080 138176 140335 141440 150592 160004 162292 162560 172720 183896 185344 188240 196928 199744 200005 202865 211328 212228 224536 226304 229870 231680 246160 249680 264160 265285 276352 280670 282880 298831 301184 320008 324584 325120 345440 367792 376480 390779 393856 396367 399488 400010 405730 422656 424456 449072 459740 463360 492320 499360 528320 530570 552704 561340 564901 565760 597662 602368 640016 649168 650240 689741 690880 735584 752960 781558 787712 792734 798976 800020 811460 845312 848912 898144 919480 926720 984640 998720 1056640 1061140 1105408 1122680 1129802 1131520 1195324 1204736 1280032 1298336 1379482 1381760 1471168 1494155 1505920 1563116 1575424 1585468 1597952 1600040 1622920 1690624 1697824 1796288 1838960 1953895 1969280 1981835 1997440 2113280 2122280 2210816 2245360 2259604 2390648 2409472 2560064 2596672 2758964 2763520 2824505 2942336 2988310 3011840 3126232 3150848 3170936 3195904 3200080 3245840 3395648 3448705 3592576 3677920 3907790 3938560 3963670 3994880 4226560 4244560 4490720 4519208 4781296 5080127 5120128 5152771 5193344 5517928 5527040 5649010 5884672 5976620 6023680 6252464 6341872 6400160 6491680 6738239 6791296 6897410 7185152 7343713 7355840 7815580 7877120 7927340 7989760 8453120 8489120 8981440 9038416 9562592 9603317 10160254 10240256 10305542 10386688 11035856 11054080 11298020 11769344 11953240 12047360 12504928 12683744 12800320 12983360 13476478 13582592 13794820 14370304 14687426 14711680 15631160 15754240 15854680 15979520 16978240 17962880 18076832 19125184 19206634 20320508 20480512 20611084 20773376 22071712 22596040 23538688 23906480 25009856 25367488 25400635 25600640 25763855 25966720 26952956 27165184 27589640 28740608 29374852 29423360 31262320 31709360 33691195 33956480 35925760 36153664 36718565 38250368 38413268 40641016 40961024 41222168 41546752 44143424 45192080 47812960 48016585 50019712 50734976 50801270 51201280 51527710 51933440 53905912 54330368 55179280 58749704 58846720 62524640 63418720 67382390 67912960 71742427 71851520 72307328 73437130 76500736 76826536 81282032 82444336 87597107 88286848 90384160 95625920 96033170 100039424 101469952 101602540 102402560 103055420 103866880 107811824 110358560 117499408 117693440 124843121 125049280 126837440 134764780 135825920 143484854 143703040 144614656 146874260 153001472 153653072 162564064 164888672 175194214 176573696 180768320 191251840 192066340 200078848 202939904 203205080 204805120 206110840 207733760 215623648 220717120 234998816 249686242 250098560 253674880 269529560 271651840 286969708 289229312 293748520 306002944 307306144 325128128 329777344 350388428 353147392 358712135 361536640 382503680 384132680 400157696 405879808 406410160 412221680 431247296 437985535 441434240 469997632 499372484 500197120 507349760 539059120 573939416 578458624 587497040 614612288 624215605 650256256 659554688 700776856 706294784 717424270 723073280 765007360 768265360 812820320 824443360 862494592 875971070 882868480 932651551 939995264 998744968 1000394240 1014699520 1078118240 1147878832 1174994080 1219621259 1229224576 1248431210 1300512512 1319109376 1401553712 1434848540 1446146560 1530014720 1536530720 1625640640 1648886720 1724989184 1751942140 1765736960 1865303102 1879990528 1997489936 2000788480 2029399040 2156236480 2295757664 2349988160 2439242518 2458449152 2496862420 2601025024 2638218752 2803107424 2869697080 2892293120 3073061440 3251281280 3297773440 3449978368 3503884280 3531473920 3730606204 3759981056 3994979872 4312472960 4591515328 4663257755 4699976320 4878485036 4916898304 4993724840 5202050048 5276437504 5606214848 5739394160 6098106295 6146122880 6502562560 6595546880 6899956736 7007768560 7461212408 7519962112 7989959744 8624945920 9183030656 9326515510 9399952640 9756970072 9833796608 9987449680 11212429696 11478788320 12196212590 12292245760 13005125120 13191093760 14015537120 14922424816 15855076367 15979919488 17249891840 18366061312 18653031020 18799905280 19513940144 19974899360 22424859392 22957576640 24392425180 24584491520 26010250240 26382187520 28031074240 29844849632 31710152734 31959838976 34499783680 36732122624 37306062040 37599810560 39027880288 39949798720 44849718784 45915153280 48784850360 49168983040 56062148480 59689699264 63420305468 63919677952 73464245248 74612124080 78055760576 79275381835 79899597440 89699437568 91830306560 97569700720 112124296960 119379398528 126840610936 127839355904 149224248160 156111521152 158550763670 159799194880 183660613120 195139401440 224248593920 238758797056 253681221872 298448496320 312223042304 317101527340 319598389760 367321226240 390278802880 448497187840 477517594112 507362443744 596896992640 624446084608 634203054680 639196779520 780557605760 955035188224 1014724887488 1193793985280 1248892169216 1268406109360 1561115211520 2029449774976 2387587970560 2536812218720 3122230423040 4058899549952 4775175941120 5073624437440 6244460846080 8117799099904 10147248874880 16235598199808 20294497749760 40588995499520 81177990999040
• Sum of all divisors σ(n): 225104351367168
• Sum of proper divisors (its aliquot sum) s(n): 143926360368128
• 81177990999040 is an abundant number, because the sum of its proper divisors (143926360368128) is greater than itself. Its abundance is 62748369369088

Bases of 81177990999040

• Binary: 10010011101010010111001010100010010110000000000₂
• Hexadecimal: 0x49D4B9512C00
• Base-36: SRWNJVXTS

Squares and roots of 81177990999040

• 81177990999040 squared (81177990999040²) is 6589866222640219257280921600
• 81177990999040 cubed (81177990999040³) is 534952100906365443531842727629515915264000
• The square root of 81177990999040 is 9009882.9625606125
• The cube root of 81177990999040 is 43299.1562005509

Scales and comparisons

• 81,177,990,999,040 seconds is equal to 2,581,209 years, 5 days, 10 minutes, 40 seconds.
• To count from 1 to 81,177,990,999,040 would take you about six million, four hundred fifty-three thousand and twenty-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 81177990999040 cubic inches would be around 3608.3 feet tall.

Recreational maths with 81177990999040

• 81177990999040 backwards is 04099909977118
• The number of decimal digits it has is: 14
• The sum of 81177990999040's digits is 73
• More coming soon!