21231438989824

Names of 21231438989824

• Cardinal: 21231438989824 can be written as Twenty-one trillion, two hundred thirty-one billion, four hundred thirty-eight million, nine hundred eighty-nine thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.1231438989824 × 10¹³

Factors of 21231438989824

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 237

Divisors of 21231438989824

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 29 31 32 34 56 58 62 64 68 112 116 119 124 128 136 151 203 217 224 232 238 248 256 272 289 302 406 434 448 464 476 493 496 512 527 544 578 604 812 868 896 899 928 952 986 992 1054 1057 1088 1156 1208 1624 1736 1792 1798 1856 1904 1972 1984 2023 2108 2114 2176 2312 2416 2567 3248 3451 3472 3584 3596 3689 3712 3808 3944 3968 4046 4216 4228 4352 4379 4624 4681 4832 5134 6293 6496 6902 6944 7192 7378 7424 7616 7888 7936 8092 8381 8432 8456 8704 8758 8959 9248 9362 9664 10268 12586 12992 13804 13888 14384 14756 14848 15232 15283 15776 15872 16184 16762 16864 16912 17516 17918 17969 18496 18724 19328 20536 22801 25172 25984 27608 27776 28768 29512 30464 30566 30653 31552 32368 32767 33524 33728 33824 35032 35836 35938 36992 37448 38656 41072 43639 45602 50344 51968 55216 55552 57536 58667 59024 60928 61132 61306 62713 63104 64736 65534 67048 67456 67648 70064 71672 71876 73984 74443 74896 77312 79577 82144 87278 91204 100688 103936 106981 110432 111104 115072 117334 118048 122264 122612 125426 126208 129472 131068 134096 134912 135296 135749 140128 143344 143752 147968 148886 149792 159154 159607 164288 174556 182408 201376 213962 220864 230144 234668 236096 244528 245224 250852 252416 258944 259811 262136 268192 269824 270592 271498 280256 286688 287504 297772 299584 305473 318308 319214 328576 349112 364816 387617 402752 427924 441728 460288 469336 472192 489056 490448 501704 517888 519622 521101 524272 536384 541184 542996 557039 560512 573376 575008 595544 599168 610946 636616 638428 657152 661229 698224 706831 729632 775234 805504 855848 883456 938672 944384 950243 978112 980896 1003408 1035776 1039244 1042202 1048544 1072768 1085992 1114078 1121024 1146752 1150016 1191088 1198336 1221892 1265531 1273232 1276856 1314304 1322458 1352809 1396448 1413662 1459264 1550468 1611008 1711696 1766912 1818677 1877344 1888768 1900486 1956224 1961792 2006816 2078488 2084404 2097088 2145536 2171984 2228156 2242048 2293504 2300032 2307733 2382176 2396672 2443784 2531062 2546464 2553712 2644916 2705618 2713319 2792896 2827324 2918528 3100936 3222016 3423392 3637354 3754688 3800972 3912448 3923584 4013632 4156976 4168808 4194176 4291072 4343968 4456312 4587008 4600064 4615466 4628603 4764352 4887568 4947817 5062124 5092928 5107424 5289832 5411236 5426638 5585792 5654648 5837056 6201872 6589489 6846784 7274708 7509376 7601944 7824896 7847168 8027264 8313952 8337616 8388352 8687936 8858717 8912624 9200128 9230932 9257206 9469663 9528704 9775136 9895634 10124248 10185856 10214848 10579664 10822472 10853276 11171584 11240893 11309296 11674112 12016127 12403744 13178978 13693568 14549416 15018752 15203888 15694336 16054528 16154131 16627904 16675232 16776704 17375872 17717434 17825248 18461864 18514412 18939326 19057408 19550272 19791268 20248496 20371712 20429696 20498099 21159328 21644944 21706552 22343168 22481786 22618592 24032254 24807488 26357956 27387136 29098832 30037504 30407776 32109056 32308262 33255808 33350464 34751744 35434868 35650496 36923728 37028824 37878652 38114816 39100544 39231461 39582536 40496992 40743424 40859392 40996198 42318656 43289888 43413104 44963572 45237184 46126423 48064508 49614976 52715912 54774272 58197664 60815552 64616524 66511616 66700928 69503488 70869736 71300992 73847456 74057648 75757304 78201088 78462922 78686251 79165072 80993984 81718784 81992396 84112889 84637312 86579776 86826208 89927144 90474368 92252846 96129016 99229952 105431824 116395328 121631104 129233048 133023232 133401856 141739472 142601984 143486693 147694912 148115296 151514608 156402176 156925844 157372502 158330144 161987968 163984792 168225778 169274624 173159552 173652416 179854288 180948736 184505692 191095181 192258032 198459904 204274159 210863648 232790656 243262208 258466096 266803712 274620227 283478944 285203968 286973386 295389824 296230592 303029216 313851688 314745004 316660288 323975936 327969584 336451556 338549248 346319104 347304832 348467683 359708576 361897472 369011384 382190362 384516064 408548318 421727296 465581312 486524416 516932192 549240454 566957888 573946772 590779648 592461184 606058432 627703376 629490008 633320576 647951872 655939168 672903112 692638208 694609664 696935366 719417152 738022768 764380724 769032128 817096636 843454592 931162624 1033864384 1098480908 1133915776 1147893544 1181559296 1184922368 1212116864 1255406752 1258980016 1266641152 1311878336 1337666267 1345806224 1389219328 1393870732 1429919113 1438834304 1476045536 1528761448 1538064256 1634193272 1686909184 2067728768 2196961816 2267831552 2295787088 2369844736 2424233728 2439273781 2510813504 2517960032 2533282304 2623756672 2675332534 2691612448 2787741464 2859838226 2877668608 2952091072 3057522896 3076128512 3268386544 3373818368 4135457536 4393923632 4535663104 4591574176 4848467456 4878547562 5021627008 5035920064 5247513344 5350665068 5383224896 5575482928 5719676452 5755337216 5904182144 5923950611 6115045792 6152257024 6536773088 8270915072 8787847264 9183148352 9757095124 10043254016 10071840128 10495026688 10701330136 10766449792 11150965856 11439352904 11808364288 11847901222 12230091584 13073546176 17575694528 18366296704 19514190248 20086508032 20143680256 21402660272 21532899584 22301931712 22878705808 23616728576 23695802444 24460183168 26147092352 35151389056 36732593408 39028380496 40287360512 41467654277 42805320544 43065799168 44603863424 45757411616 47391604888 48920366336 52294184704 70302778112 73465186816 78056760992 82935308554 85610641088 89207726848 91514823232 94783209776 97840732672 104588369408 140605556224 156113521984 165870617108 171221282176 178415453696 183029646464 189566419552 312227043968 331741234216 342442564352 366059292928 379132839104 624454087936 663482468432 684885128704 732118585856 758265678208 1248908175872 1326964936864 1516531356416 2653929873728 3033062712832 5307859747456 10615719494912 21231438989824
• Sum of all divisors σ(n): 55362371581440
• Sum of proper divisors (its aliquot sum) s(n): 34130932591616
• 21231438989824 is an abundant number, because the sum of its proper divisors (34130932591616) is greater than itself. Its abundance is 12899493601792

Bases of 21231438989824

• Binary: 100110100111101010100011000010000101000000000₂
• Hexadecimal: 0x134F54610A00
• Base-36: 7IXL6LF5S

Squares and roots of 21231438989824

• 21231438989824 squared (21231438989824²) is 450774001578618753575550976
• 21231438989824 cubed (21231438989824³) is 9570580712715271530731318001949657268224
• The square root of 21231438989824 is 4607758.5646194615
• The cube root of 21231438989824 is 27690.2244912505

Scales and comparisons

• 21,231,438,989,824 seconds is equal to 675,094 years, 4 weeks, 3 days, 13 hours, 37 minutes, 4 seconds.
• To count from 1 to 21,231,438,989,824 would take you about one million, six hundred eighty-seven thousand, seven hundred thirty-five 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 21231438989824 cubic inches would be around 2307.5 feet tall.

Recreational maths with 21231438989824

• 21231438989824 backwards is 42898983413212
• 21231438989824 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21231438989824's digits is 64
• More coming soon!