21345644867680

Names of 21345644867680

• Cardinal: 21345644867680 can be written as Twenty-one trillion, three hundred forty-five billion, six hundred forty-four million, eight hundred sixty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.134564486768 × 10¹³

Factors of 21345644867680

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1411

Divisors of 21345644867680

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 43 56 62 70 80 86 103 112 124 127 140 155 160 172 206 215 217 224 248 254 280 301 310 344 412 430 434 496 508 515 560 602 620 635 688 721 824 860 868 889 992 1016 1030 1085 1093 1120 1204 1240 1270 1333 1376 1442 1505 1648 1720 1736 1778 2032 2060 2170 2186 2408 2480 2540 2666 2884 3010 3193 3296 3440 3472 3556 3605 3937 4064 4120 4340 4372 4429 4445 4816 4960 5080 5332 5461 5465 5768 6020 6386 6665 6880 6944 7112 7210 7651 7874 8240 8680 8744 8858 8890 9331 9632 10160 10664 10922 10930 11536 12040 12772 13081 13330 14224 14420 15302 15748 15965 16480 17360 17488 17716 17780 18662 19685 20320 21328 21844 21860 22145 22351 23072 24080 25544 26162 26660 27305 27559 28448 28840 30604 31003 31496 31930 33883 34720 34976 35432 35560 37324 38227 38255 39370 42656 43688 43720 44290 44702 46655 46999 48160 51088 52324 53320 54610 55118 57680 61208 62006 62992 63860 65405 67766 70864 71120 74648 76454 76510 78740 87376 87440 88580 89404 91567 93310 93998 102176 104648 106640 109220 110236 111755 112579 115360 122416 124012 125984 127720 130810 135532 137299 137795 138811 141728 142240 149296 152908 153020 155015 157480 169291 169415 174752 174880 177160 178808 183134 186620 187996 191135 209296 213280 218440 220472 223510 225158 234995 237181 244832 248024 255440 261620 271064 274598 275590 277622 298592 305816 306040 310030 314960 328993 338582 338830 354320 357616 366268 373240 375992 382270 405511 418592 436880 440944 447020 450316 457835 469990 474362 496048 510880 523240 542128 549196 551180 555244 562483 562895 611632 612080 620060 629920 657986 677164 677660 686495 694055 708640 715232 732536 746480 751984 764540 788053 811022 846455 873760 881888 894040 900632 915670 939980 948724 961093 971677 992096 1046480 1084256 1098392 1102360 1110488 1124966 1125790 1185037 1185905 1223264 1224160 1240120 1315972 1354328 1355320 1372990 1388110 1456969 1465072 1492960 1503968 1529080 1576106 1622044 1644965 1692910 1788080 1801264 1831340 1879960 1897448 1922186 1943354 2027555 2092960 2196784 2204720 2220976 2249932 2251580 2370074 2371810 2480240 2631944 2708656 2710640 2745980 2776220 2812415 2838577 2913938 2930144 3058160 3152212 3244088 3289930 3385820 3489949 3576160 3602528 3662680 3759920 3794896 3844372 3886708 3937381 3940265 4055110 4303141 4393568 4409440 4441952 4499864 4503160 4740148 4743620 4805465 4840897 4858385 4960480 5263888 5417312 5421280 5491960 5552440 5624830 5677154 5827876 5925185 5968873 6116320 6304424 6488176 6579860 6771640 6979898 7284845 7325360 7519840 7589792 7688744 7773416 7874762 7880530 8110220 8606282 8999728 9006320 9480296 9487240 9610930 9681794 9716770 10198783 10527776 10983920 11104880 11249660 11354308 11655752 11850370 11937746 12608848 12976352 13159720 13543280 13959796 14192885 14297533 14569690 14650720 15377488 15546832 15749524 15761060 16220440 17212564 17436973 17449745 17999456 18012640 18960592 18974480 19221860 19363588 19433540 19686905 20397566 21515705 21967840 22209760 22499320 22708616 23311504 23700740 23875492 24204485 24429643 25217696 26319440 27086560 27919592 28385770 28595066 29139380 29844365 30121987 30754976 31093664 31499048 31522120 32440880 33886279 34425128 34873946 34899490 37921184 37948960 38443720 38727176 38867080 39373810 40795132 41782111 43031410 44998640 45417232 46623008 47401480 47750984 48408970 48859286 50993915 52638880 55839184 56771540 57190132 58278760 59688730 60243974 62998096 63044240 64881760 67772558 68850256 69747892 69798980 71487665 76887440 77454352 77734160 78747620 81590264 83564222 86062820 87184865 89997280 90834464 94802960 95501968 96817940 97718572 100082731 101987830 111678368 113543080 114380264 116557520 119377460 120487948 122058811 122148215 125996192 126088480 135545116 137700512 139495784 139597960 142975330 150067807 150609935 153774880 154908704 155468320 157495240 163180528 167128444 169431395 172125640 174369730 185035063 189605920 191003936 193635880 195437144 200165462 203975660 208910555 227086160 228760528 233115040 238754920 240975896 244117622 244296430 271090232 278991568 279195920 285950660 300135614 301219870 314990480 326361056 334256888 338862790 344251280 348739460 370070126 387271760 390874288 400330924 407951320 417821110 443223523 454172320 457521056 477509840 481951792 488235244 488592860 500413655 542180464 557983136 558391840 571901320 600271228 602439740 610294055 614793919 629980960 668513776 677725580 688502560 697478920 740140252 750339035 774543520 781748576 800661848 815902640 835642220 886447046 925175315 955019680 963903584 976470488 977185720 1000827310 1050474649 1084360928 1143802640 1200542456 1204879480 1220588110 1229587838 1295245441 1337027552 1355451160 1394957840 1480280504 1500678070 1601323696 1631805280 1671284440 1772894092 1850350630 1952940976 1954371440 2001654620 2100949298 2216117615 2287605280 2401084912 2409758960 2441176220 2459175676 2590490882 2710902320 2789915680 2960561008 3001356140 3073969595 3102564661 3202647392 3342568880 3545788184 3700701260 3905881952 3908742880 4003309240 4201898596 4303557433 4432235230 4802169824 4819517920 4882352440 4918351352 5180981764 5252373245 5421804640 5921122016 6002712280 6147939190 6205129322 6476227205 6685137760 7091576368 7401402520 8006618480 8403797192 8607114866 8864470460 9764704880 9836702704 10361963528 10504746490 12005424560 12295878380 12410258644 12952454410 14183152736 14802805040 15512823305 16013236960 16807594384 17214229732 17728940920 19058611489 19529409760 19673405408 20723927056 21009492980 21517787165 24010849120 24591756760 24820517288 25904908820 29605610080 31025646610 33615188768 34428459464 35457881840 38117222978 41447854112 42018985960 43035574330 49183513520 49641034576 51809817640 62051293220 68856918928 70915763680 76234445956 84037971920 86071148660 95293057445 98367027040 99282069152 103619635280 124102586440 133410280423 137713837856 152468891912 168075943840 172142297320 190586114890 207239270560 248205172880 266820560846 304937783824 344284594640 381172229780 496410345760 533641121692 609875567648 667051402115 688569189280 762344459560 1067282243384 1334102804230 1524688919120 2134564486768 2668205608460 3049377838240 4269128973536 5336411216920 10672822433840 21345644867680
• Sum of all divisors σ(n): 62007621451776
• Sum of proper divisors (its aliquot sum) s(n): 40661976584096
• 21345644867680 is an abundant number, because the sum of its proper divisors (40661976584096) is greater than itself. Its abundance is 19316331716416

Bases of 21345644867680

• Binary: 100110110100111101011100101000111000001100000₂
• Hexadecimal: 0x1369EB947060
• Base-36: 7KE1XTQHS

Squares and roots of 21345644867680

• 21345644867680 squared (21345644867680²) is 455636554817113524708582400
• 21345644867680 cubed (21345644867680³) is 9725856087859316289727666774208376832000
• The square root of 21345644867680 is 4620134.7239750487
• The cube root of 21345644867680 is 27739.7851612463

Scales and comparisons

• 21,345,644,867,680 seconds is equal to 678,725 years, 24 weeks, 6 days, 20 hours, 34 minutes, 40 seconds.
• To count from 1 to 21,345,644,867,680 would take you about one million, six hundred ninety-six thousand, eight hundred thirteen 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 21345644867680 cubic inches would be around 2311.6 feet tall.

Recreational maths with 21345644867680

• 21345644867680 backwards is 08676844654312
• The number of decimal digits it has is: 14
• The sum of 21345644867680's digits is 64
• More coming soon!