81338926737408

Names of 81338926737408

• Cardinal: 81338926737408 can be written as Eighty-one trillion, three hundred thirty-eight billion, nine hundred twenty-six million, seven hundred thirty-seven thousand, four hundred eight.

Scientific notation

• Scientific notation: 8.1338926737408 × 10¹³

Factors of 81338926737408

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 2160

Divisors of 81338926737408

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 29 31 32 41 48 58 62 64 82 87 93 96 116 123 124 128 164 174 186 192 193 232 246 248 256 328 348 372 384 386 464 492 496 512 579 656 696 744 768 772 899 928 984 992 1024 1158 1189 1271 1312 1392 1488 1536 1544 1798 1856 1861 1968 1984 2048 2316 2378 2542 2624 2697 2784 2976 3072 3088 3567 3596 3712 3722 3813 3936 3968 4632 4756 5084 5248 5394 5568 5583 5597 5952 5983 6144 6176 7134 7192 7424 7444 7626 7872 7913 7936 9264 9512 10168 10496 10788 11136 11166 11194 11904 11966 12352 14268 14384 14848 14888 15252 15744 15826 15872 16791 17949 18528 19024 20336 20992 21576 22272 22332 22388 23739 23808 23932 24704 28536 28768 29696 29776 30504 31488 31652 31744 33582 35898 36859 37056 38048 40672 41984 43152 44544 44664 44776 47478 47616 47864 49408 53969 57072 57536 57691 59392 59552 61008 62976 63304 63488 67164 71796 73718 74112 76096 76301 81344 83968 86304 89088 89328 89552 94956 95232 95728 98816 107938 110577 114144 115072 115382 119104 122016 125952 126608 134328 143592 147436 148224 152192 152602 161907 162688 172608 173073 173507 178176 178656 179104 189912 190464 191456 197632 215876 221154 228288 228903 229477 230144 230764 238208 244032 245303 251904 253216 268656 287184 294872 296448 304384 305204 323814 325376 345216 346146 347014 357312 358208 359173 379824 382912 395264 431752 442308 456576 457806 458954 460288 461528 476416 488064 490606 506432 520521 537312 574368 589744 592896 608768 610408 647628 650752 688431 690432 692292 694028 714624 716416 718346 735909 759648 765824 863504 884616 913152 915612 917908 920576 923056 952832 976128 981212 1012864 1041042 1074624 1077519 1148736 1179488 1185792 1217536 1220816 1295256 1301504 1376862 1380864 1384584 1388056 1429248 1432832 1436692 1471818 1519296 1531648 1673039 1727008 1769232 1826304 1831224 1835816 1841152 1846112 1905664 1952256 1962424 2025728 2082084 2149248 2155038 2212729 2297472 2358976 2365331 2435072 2441632 2590512 2603008 2753724 2761728 2769168 2776112 2858496 2865664 2873384 2943636 3038592 3063296 3346078 3454016 3538464 3652608 3662448 3671632 3692224 3811328 3904512 3924848 4051456 4164168 4298496 4310076 4425458 4594944 4717952 4730662 4883264 5019117 5181024 5507448 5523456 5538336 5552224 5716992 5731328 5746768 5887272 6077184 6126592 6638187 6692156 6908032 7076928 7095993 7113787 7305216 7324896 7343264 7384448 7809024 7849696 8102912 8328336 8596992 8620152 8850916 9189888 9435904 9461324 9766528 10038234 10362048 10416017 11014896 11076672 11104448 11134363 11433984 11462656 11493536 11774544 12154368 12253184 13276374 13384312 13816064 14153856 14191986 14227574 14649792 14686528 14726093 14768896 15699392 16205824 16656672 17193984 17240304 17701832 18379776 18871808 18922648 19533056 20076468 20724096 20832034 21341361 22029792 22153344 22208896 22268726 22987072 23549088 24308736 26552748 26768624 27632128 28307712 28383972 28455148 29299584 29373056 29452186 29537792 31248051 31398784 33313344 33403089 34387968 34480608 35403664 36759552 37743616 37845296 39066112 40152936 41448192 41664068 42682722 44059584 44178279 44306688 44417792 44537452 45974144 47098176 48617472 53105496 53537248 55264256 56615424 56767944 56910296 58599168 58746112 58904372 59075584 62496102 62797568 66626688 66806178 68594599 68961216 70807328 75487232 75690592 78132224 80305872 82896384 83328136 85365444 88119168 88356558 88613376 88835584 89074904 91948288 94196352 106210992 107074496 110528512 113230848 113535888 113820592 117198336 117492224 117808744 118151168 124992204 125595136 133253376 133612356 137189198 137922432 141614656 151381184 156264448 160611744 165792768 166656272 170730888 176238336 176713116 177226752 177671168 178149808 183896576 188392704 205783797 212421984 214148992 226461696 227071776 227641184 234396672 234984448 235617488 249984408 251190272 266506752 267224712 274378396 275844864 283229312 302762368 321223488 322896527 331585536 333312544 341461776 352476672 353426232 354453504 355342336 356299616 367793152 376785408 411567594 424843968 427056697 428297984 454143552 455282368 456508883 468793344 469968896 471234976 499968816 502380544 533013504 534449424 548756792 551689728 566458624 605524736 642446976 645793054 666625088 682923552 704953344 706852464 712599232 735586304 753570816 823135188 849687936 854113394 856595968 908287104 910564736 913017766 942469952 968689581 999937632 1066027008 1068898848 1097513584 1103379456 1132917248 1211049472 1281170091 1284893952 1291586108 1333250176 1365847104 1369526649 1409906688 1413704928 1425198464 1507141632 1646270376 1699375872 1708226788 1713191936 1816574208 1821129472 1826035532 1884939904 1937379162 1999875264 2137797696 2195027168 2206758912 2265834496 2422098944 2562340182 2569787904 2583172216 2666500352 2731694208 2739053298 2827409856 2850396928 3292540752 3398751744 3416453576 3426383872 3633148416 3642258944 3652071064 3769879808 3874758324 3999750528 4275595392 4390054336 4531668992 4844197888 5124680364 5139575808 5166344432 5333000704 5463388416 5478106596 5654819712 5700793856 6585081504 6797503488 6832907152 7266296832 7284517888 7304142128 7539759616 7749516648 7999501056 8551190784 8780108672 10249360728 10279151616 10332688864 10666001408 10926776832 10956213192 11309639424 11401587712 13170163008 13238757607 13595006976 13665814304 14532593664 14569035776 14608284256 15079519232 15499033296 15999002112 17102381568 17560217344 20498721456 20665377728 21332002816 21853553664 21912426384 22619278848 22803175424 26340326016 26477515214 27331628608 29216568512 30159038464 30998066592 31998004224 34204763136 35120434688 39716272821 40997442912 41330755456 43707107328 43824852768 45238557696 52680652032 52955030428 54663257216 58433137024 61996133184 63996008448 68409526272 70240869376 79432545642 81994885824 82661510912 87649705536 90477115392 105361304064 105910060856 109326514432 116866274048 123992266368 140481738752 158865091284 163989771648 165323021824 175299411072 210722608128 211820121712 218653028864 233732548096 247984532736 317730182568 327979543296 330646043648 350598822144 421445216256 423640243424 437306057728 467465096192 495969065472 635460365136 655959086592 661292087296 701197644288 847280486848 874612115456 934930192384 991938130944 1270920730272 1311918173184 1402395288576 1694560973696 1983876261888 2541841460544 2623836346368 2804790577152 3389121947392 5083682921088 6778243894784 10167365842176 13556487789568 20334731684352 27112975579136 40669463368704 81338926737408
• Sum of all divisors σ(n): 238569998284800
• Sum of proper divisors (its aliquot sum) s(n): 157231071547392
• 81338926737408 is an abundant number, because the sum of its proper divisors (157231071547392) is greater than itself. Its abundance is 75892144809984

Bases of 81338926737408

• Binary: 10010011111101000110001110101011010100000000000₂
• Hexadecimal: 0x49FA31D5A800
• Base-36: STYL4VCAO

Squares and roots of 81338926737408

• 81338926737408 squared (81338926737408²) is 6616021002793426031386558464
• 81338926737408 cubed (81338926737408³) is 538140047639367088881319659250668967821312
• The square root of 81338926737408 is 9018809.6075595253
• The cube root of 81338926737408 is 43327.7509042129

Scales and comparisons

• 81,338,926,737,408 seconds is equal to 2,586,326 years, 14 weeks, 1 day, 3 hours, 56 minutes, 48 seconds.
• To count from 1 to 81,338,926,737,408 would take you about six million, four hundred sixty-five thousand, eight hundred fifteen 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 81338926737408 cubic inches would be around 3610.6 feet tall.

Recreational maths with 81338926737408

• 81338926737408 backwards is 80473762983318
• The number of decimal digits it has is: 14
• The sum of 81338926737408's digits is 69
• More coming soon!