21215017802137600

Names of 21215017802137600

• Cardinal: 21215017802137600 can be written as Twenty-one quadrillion, two hundred fifteen trillion, seventeen billion, eight hundred two million, one hundred thirty-seven thousand, six hundred.

Scientific notation

• Scientific notation: 2.12150178021376 × 10¹⁶

Factors of 21215017802137600

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 36
• Sum of prime factors: 141

Divisors of 21215017802137600

• Number of divisors d(n): 837
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 49 50 56 64 70 80 98 100 112 127 128 140 160 175 196 200 224 245 254 256 280 320 350 392 400 448 490 508 512 560 635 640 700 784 800 889 896 980 1016 1024 1120 1225 1270 1280 1400 1568 1600 1778 1792 1960 2032 2048 2240 2450 2540 2560 2800 3136 3175 3200 3556 3584 3920 4064 4096 4445 4480 4900 5080 5120 5600 6223 6272 6350 6400 7112 7168 7840 8128 8192 8890 8960 9800 10160 10240 11200 12446 12544 12700 12800 14224 14336 15680 16129 16256 16384 17780 17920 19600 20320 20480 22225 22400 24892 25088 25400 25600 28448 28672 31115 31360 32258 32512 32768 35560 35840 39200 40640 40960 44450 44800 49784 50176 50800 51200 56896 57344 62230 62720 64516 65024 65536 71120 71680 78400 80645 81280 81920 88900 89600 99568 100352 101600 102400 112903 113792 114688 124460 125440 129032 130048 131072 142240 143360 155575 156800 161290 162560 163840 177800 179200 199136 200704 203200 204800 225806 227584 229376 248920 250880 258064 260096 262144 284480 286720 311150 313600 322580 325120 327680 355600 358400 398272 401408 403225 406400 409600 451612 455168 458752 497840 501760 516128 520192 524288 564515 568960 573440 622300 627200 645160 650240 655360 711200 716800 790321 796544 802816 806450 812800 819200 903224 910336 917504 995680 1003520 1032256 1040384 1048576 1129030 1137920 1146880 1244600 1254400 1290320 1300480 1310720 1422400 1433600 1580642 1593088 1605632 1612900 1625600 1638400 1806448 1820672 1835008 1991360 2007040 2064512 2080768 2097152 2258060 2275840 2293760 2489200 2508800 2580640 2600960 2621440 2822575 2844800 2867200 3161284 3186176 3211264 3225800 3251200 3276800 3612896 3641344 3670016 3951605 3982720 4014080 4129024 4161536 4194304 4516120 4551680 4587520 4978400 5017600 5161280 5201920 5242880 5645150 5689600 5734400 6322568 6372352 6422528 6451600 6502400 6553600 7225792 7282688 7340032 7903210 7965440 8028160 8258048 8323072 8388608 9032240 9103360 9175040 9956800 10035200 10322560 10403840 10485760 11290300 11379200 11468800 12645136 12744704 12845056 12903200 13004800 13107200 14451584 14565376 14680064 15806420 15930880 16056320 16516096 16646144 16777216 18064480 18206720 18350080 19758025 19913600 20070400 20645120 20807680 20971520 22580600 22758400 22937600 25290272 25489408 25690112 25806400 26009600 26214400 28903168 29130752 29360128 31612840 31861760 32112640 33032192 33292288 33554432 36128960 36413440 36700160 39516050 39827200 40140800 41290240 41615360 41943040 45161200 45516800 45875200 50580544 50978816 51380224 51612800 52019200 52428800 57806336 58261504 58720256 63225680 63723520 64225280 66064384 66584576 67108864 72257920 72826880 73400320 79032100 79654400 80281600 82580480 83230720 83886080 90322400 91033600 91750400 101161088 101957632 102760448 103225600 104038400 104857600 115612672 116523008 117440512 126451360 127447040 128450560 132128768 133169152 134217728 144515840 145653760 146800640 158064200 159308800 160563200 165160960 166461440 167772160 180644800 182067200 183500800 202322176 203915264 205520896 206451200 208076800 209715200 231225344 233046016 234881024 252902720 254894080 256901120 264257536 266338304 268435456 289031680 291307520 293601280 316128400 318617600 321126400 330321920 332922880 335544320 361289600 364134400 367001600 404644352 407830528 411041792 412902400 416153600 419430400 462450688 466092032 469762048 505805440 509788160 513802240 528515072 532676608 536870912 578063360 582615040 587202560 632256800 637235200 642252800 660643840 665845760 671088640 722579200 728268800 734003200 809288704 815661056 822083584 825804800 832307200 838860800 924901376 932184064 939524096 1011610880 1019576320 1027604480 1057030144 1065353216 1073741824 1156126720 1165230080 1174405120 1264513600 1274470400 1284505600 1321287680 1331691520 1342177280 1445158400 1456537600 1468006400 1618577408 1631322112 1644167168 1651609600 1664614400 1677721600 1849802752 1864368128 1879048192 2023221760 2039152640 2055208960 2114060288 2130706432 2312253440 2330460160 2348810240 2529027200 2548940800 2569011200 2642575360 2663383040 2684354560 2890316800 2913075200 2936012800 3237154816 3262644224 3288334336 3303219200 3329228800 3355443200 3699605504 3728736256 3758096384 4046443520 4078305280 4110417920 4228120576 4261412864 4624506880 4660920320 4697620480 5058054400 5097881600 5138022400 5285150720 5326766080 5368709120 5780633600 5826150400 5872025600 6474309632 6525288448 6576668672 6606438400 6658457600 6710886400 7399211008 7457472512 7516192768 8092887040 8156610560 8220835840 8456241152 8522825728 9249013760 9321840640 9395240960 10116108800 10195763200 10276044800 10570301440 10653532160 11561267200 11652300800 11744051200 12948619264 13050576896 13153337344 13212876800 13316915200 13421772800 14798422016 14914945024 16185774080 16313221120 16441671680 16912482304 17045651456 18498027520 18643681280 18790481920 20232217600 20391526400 20552089600 21140602880 21307064320 23122534400 23304601600 23488102400 25897238528 26101153792 26306674688 26425753600 26633830400 26843545600 29596844032 29829890048 32371548160 32626442240 32883343360 33824964608 34091302912 36996055040 37287362560 37580963840 40464435200 40783052800 41104179200 42281205760 42614128640 46245068800 46609203200 46976204800 51794477056 52202307584 52613349376 52851507200 53267660800 59193688064 59659780096 64743096320 65252884480 65766686720 67649929216 68182605824 73992110080 74574725120 80928870400 81566105600 82208358400 84562411520 85228257280 92490137600 93218406400 93952409600 103588954112 104404615168 105703014400 106535321600 118387376128 119319560192 129486192640 130505768960 131533373440 135299858432 136365211648 147984220160 149149450240 161857740800 163132211200 164416716800 169124823040 170456514560 184980275200 186436812800 187904819200 207177908224 208809230336 211406028800 213070643200 236774752256 238639120384 258972385280 261011537920 263066746880 270599716864 295968440320 298298900480 323715481600 326264422400 328833433600 338249646080 340913029120 369960550400 372873625600 414355816448 417618460672 422812057600 426141286400 473549504512 477278240768 517944770560 522023075840 541199433728 591936880640 596597800960 647430963200 652528844800 657666867200 676499292160 681826058240 739921100800 745747251200 828711632896 835236921344 845624115200 852282572800 947099009024 954556481536 1035889541120 1044046151680 1082398867456 1183873761280 1193195601920 1294861926400 1305057689600 1315333734400 1352998584320 1479842201600 1491494502400 1657423265792 1670473842688 1691248230400 1704565145600 1894198018048 2071779082240 2088092303360 2164797734912 2367747522560 2386391203840 2589723852800 2610115379200 2705997168640 2959684403200 2982989004800 3314846531584 3340947685376 3382496460800 3409130291200 3788396036096 4143558164480 4176184606720 4329595469824 4735495045120 4772782407680 5179447705600 5220230758400 5411994337280 5919368806400 5965978009600 6629693063168 6681895370752 6764992921600 7576792072192 8287116328960 8352369213440 8659190939648 9470990090240 10358895411200 10440461516800 10823988674560 11838737612800 11931956019200 13259386126336 13529985843200 15153584144384 16574232657920 16704738426880 17318381879296 18941980180480 20717790822400 20880923033600 21647977349120 23677475225600 23863912038400 26518772252672 27059971686400 30307168288768 33148465315840 33409476853760 37883960360960 41435581644800 41761846067200 43295954698240 47354950451200 53037544505344 54119943372800 60614336577536 66296930631680 75767920721920 82871163289600 83523692134400 86591909396480 94709900902400 106075089010688 108239886745600 121228673155072 132593861263360 151535841443840 165742326579200 167047384268800 189419801804800 212150178021376 216479773491200 265187722526720 303071682887680 331484653158400 378839603609600 424300356042752 432959546982400 530375445053440 606143365775360 662969306316800 757679207219200 848600712085504 1060750890106880 1325938612633600 1515358414438400 2121501780213760 2651877225267200 3030716828876800 4243003560427520 5303754450534400 10607508901068800 21215017802137600
• Sum of all divisors σ(n): 61688870794275993
• Sum of proper divisors (its aliquot sum) s(n): 40473852992138393
• 21215017802137600 is an abundant number, because the sum of its proper divisors (40473852992138393) is greater than itself. Its abundance is 19258835190000793

Bases of 21215017802137600

• Binary: 1001011010111101111001001000000000000000000000000000000₂
• Hexadecimal: 0x4B5EF240000000
• Base-36: 5SW3GMRV5DS

Squares and roots of 21215017802137600

• 21215017802137600 squared (21215017802137600²) is 450076980345015284103129333760000
• 21215017802137600 cubed (21215017802137600³) is 9548391150351833946705450522719390191845376000000
• 21215017802137600 is a perfect square number. Its square root is 145653760
• The cube root of 21215017802137600 is 276830.8376544555

Scales and comparisons

• 21,215,017,802,137,600 seconds is equal to 674,571,943 years, 38 weeks, 6 days, 17 hours, 46 minutes, 40 seconds.
• To count from 1 to 21,215,017,802,137,600 would take you about two billion, twenty-three million, seven hundred fifteen thousand, eight hundred thirty-one 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 21215017802137600 cubic inches would be around 23069.2 feet tall.

Recreational maths with 21215017802137600

• 21215017802137600 backwards is 00673120871051212
• The number of decimal digits it has is: 17
• The sum of 21215017802137600's digits is 46
• More coming soon!