640809212921600

Names of 640809212921600

• Cardinal: 640809212921600 can be written as Six hundred forty trillion, eight hundred nine billion, two hundred twelve million, nine hundred twenty-one thousand, six hundred.

Scientific notation

• Scientific notation: 6.408092129216 × 10¹⁴

Factors of 640809212921600

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 198

Divisors of 640809212921600

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 37 40 47 50 64 74 80 94 100 107 128 148 160 185 188 200 214 235 256 296 320 370 376 400 428 470 535 592 640 740 752 800 856 925 940 1070 1175 1184 1280 1480 1504 1600 1712 1739 1850 1880 2140 2209 2350 2368 2675 2960 3008 3200 3424 3478 3700 3760 3959 4280 4418 4700 4736 5029 5350 5920 6016 6400 6848 6956 7400 7520 7918 8560 8695 8836 9400 9472 10058 10700 11045 11449 11840 12032 13696 13912 14800 15040 15836 17120 17390 17672 18800 19795 20116 21400 22090 22898 23680 25145 27392 27824 29600 30080 31672 34240 34780 35344 37600 39590 40232 42800 43475 44180 45796 47360 50290 55225 55648 57245 59200 60160 63344 68480 69560 70688 75200 79180 80464 81733 85600 86950 88360 91592 98975 100580 110450 111296 114490 118400 125725 126688 136960 139120 141376 150400 158360 160928 163466 171200 173900 176720 183184 186073 197950 201160 220900 222592 228980 236363 236800 251450 253376 278240 282752 286225 300800 316720 321856 326932 342400 347800 353440 366368 372146 395900 402320 408665 423613 441800 445184 457960 472726 502900 506752 538103 556480 565504 572450 633440 643712 653864 684800 695600 706880 732736 744292 791800 804640 817330 847226 883600 915920 930365 945452 1005800 1013504 1076206 1112960 1144900 1181815 1225043 1266880 1287424 1307728 1391200 1413760 1465472 1488584 1583600 1609280 1634660 1694452 1767200 1831840 1860730 1890904 2011600 2043325 2118065 2152412 2225920 2289800 2363630 2450086 2533760 2615456 2690515 2782400 2827520 2930944 2977168 3167200 3218560 3269320 3388904 3534400 3663680 3721460 3781808 4023200 4086650 4236130 4304824 4579600 4651825 4727260 4900172 5067520 5230912 5381030 5564800 5909075 5954336 6125215 6334400 6437120 6538640 6777808 7068800 7327360 7442920 7563616 8046400 8173300 8472260 8609648 8745431 9159200 9303650 9454520 9800344 10461824 10590325 10762060 11129600 11818150 11908672 12250430 12668800 13077280 13452575 13555616 14137600 14654720 14885840 15127232 16092800 16346600 16944520 17219296 17490862 18318400 18607300 18909040 19600688 19909811 20923648 21180650 21524120 23636300 23817344 24500860 25290841 25337600 26154560 26905150 27111232 29771680 30254464 30626075 32185600 32693200 33889040 34438592 34981724 36636800 37214600 37818080 39201376 39819622 42361300 43048240 43727155 45326591 47272600 47634688 49001720 50581682 52309120 53810300 54222464 57577021 59543360 60508928 61252150 65386400 67778080 68877184 69963448 73273600 74429200 75636160 78402752 79639244 84722600 86096480 87454310 90653182 94545200 98003440 99549055 101163364 104618240 107620600 108444928 115154042 119086720 122504300 126454205 130772800 135556160 137754368 139926896 148858400 151272320 156805504 159278488 169445200 172192960 174908620 181306364 189090400 196006880 199098110 202326728 215241200 218635775 226632955 230308084 238173440 245008600 252908410 261545600 271112320 279853792 287885105 297716800 302544640 313611008 318556976 338890400 344385920 349817240 362612728 378180800 392013760 398196220 404653456 430482400 437271550 453265910 460616168 490017200 497745275 505816820 523091200 542224640 559707584 575770210 595433600 632271025 637113952 677780800 688771840 699634480 725225456 756361600 784027520 796392440 809306912 860964800 874543100 906531820 921232336 935761117 980034400 995490550 1011633640 1119415168 1133164775 1151540420 1190867200 1264542050 1274227904 1355561600 1399268960 1439425525 1450450912 1512723200 1568055040 1592784880 1618613824 1721929600 1749086200 1813063640 1842464672 1871522234 1960068800 1990981100 2023267280 2130349777 2238830336 2266329550 2303080840 2529084100 2548455808 2706119987 2711123200 2798537920 2878851050 2900901824 3185569760 3237227648 3443859200 3498172400 3626127280 3684929344 3743044468 3920137600 3981962200 4046534560 4260699554 4532659100 4606161680 4678805585 5058168200 5096911616 5412239974 5597075840 5757702100 5801803648 6371139520 6474455296 6996344800 7252254560 7369858688 7486088936 7840275200 7963924400 8093069120 8521399108 9065318200 9212323360 9357611170 10116336400 10651748885 10824479948 11194151680 11515404200 11603607296 12742279040 13530599935 13992689600 14504509120 14739717376 14972177872 15927848800 16186138240 17042798216 18130636400 18424646720 18715222340 20232672800 21303497770 21648959896 23030808400 23394027925 25484558080 27061199870 27985379200 29009018240 29944355744 31855697600 32372276480 34085596432 36261272800 36849293440 37430444680 40465345600 42606995540 43297919792 46061616800 46788055850 53258744425 54122399740 55970758400 58018036480 59888711488 63711395200 67652999675 68171192864 72522545600 73698586880 74860889360 80930691200 85213991080 86595839584 92123233600 93576111700 100126439519 106517488850 108244799480 119777422976 127422790400 135305999350 136342385728 145045091200 149721778720 161861382400 170427982160 173191679168 184246467200 187152223400 200252879038 213034977700 216489598960 239554845952 270611998700 272684771456 290090182400 299443557440 340855964320 346383358336 368492934400 374304446800 400505758076 426069955400 432979197920 500632197595 541223997400 545369542912 598887114880 681711928640 692766716672 748608893600 801011516152 852139910800 865958395840 1001264395190 1082447994800 1197774229760 1363423857280 1497217787200 1602023032304 1704279821600 1731916791680 2002528790380 2164895989600 2503160987975 2726847714560 2994435574400 3204046064608 3408559643200 3463833583360 4005057580760 4329791979200 5006321975950 5988871148800 6408092129216 6817119286400 8010115161520 8659583958400 10012643951900 12816184258432 13634238572800 16020230323040 17319167916800 20025287903800 25632368516864 32040460646080 40050575807600 64080921292160 80101151615200 128161842584320 160202303230400 320404606460800 640809212921600
• Sum of all divisors σ(n): 1680068510139600
• Sum of proper divisors (its aliquot sum) s(n): 1039259297218000
• 640809212921600 is an abundant number, because the sum of its proper divisors (1039259297218000) is greater than itself. Its abundance is 398450084296400

Bases of 640809212921600

• Binary: 10010001101101000000000101100000010100011100000000₂
• Hexadecimal: 0x246D005814700
• Base-36: 6B5BOS648W

Squares and roots of 640809212921600

• 640809212921600 squared (640809212921600²) is 410636447365200484407746560000
• 640809212921600 cubed (640809212921600³) is 263139618633016148527115126239489949696000000
• The square root of 640809212921600 is 25314209.7036743377
• The cube root of 640809212921600 is 86213.6930622119

Scales and comparisons

• 640,809,212,921,600 seconds is equal to 20,375,750 years, 42 weeks, 3 days, 16 hours, 53 minutes, 20 seconds.
• To count from 1 to 640,809,212,921,600 would take you about fifty million, nine hundred thirty-nine thousand, three hundred seventy-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 640809212921600 cubic inches would be around 7184.5 feet tall.

Recreational maths with 640809212921600

• 640809212921600 backwards is 006129212908046
• 640809212921600 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 640809212921600's digits is 50
• More coming soon!