21408581970468

Names of 21408581970468

• Cardinal: 21408581970468 can be written as Twenty-one trillion, four hundred eight billion, five hundred eighty-one million, nine hundred seventy thousand, four hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1408581970468 × 10¹³

Factors of 21408581970468

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 387

Divisors of 21408581970468

• Number of divisors d(n): 810
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 17 18 21 22 28 33 34 36 42 44 49 51 63 66 68 77 84 98 99 102 119 121 126 132 147 153 154 187 196 198 204 231 238 242 252 294 306 308 343 347 357 363 374 396 441 462 476 484 539 561 588 612 686 693 694 714 726 748 833 847 882 924 1029 1041 1071 1078 1089 1122 1309 1372 1386 1388 1428 1452 1617 1666 1683 1694 1764 2057 2058 2082 2142 2156 2178 2244 2401 2429 2499 2541 2618 2772 3087 3123 3234 3332 3366 3388 3773 3817 3927 4114 4116 4164 4284 4356 4802 4851 4858 4998 5082 5236 5831 5899 5929 6171 6174 6246 6468 6732 7203 7287 7497 7546 7623 7634 7854 8228 9163 9604 9702 9716 9996 10164 11319 11451 11662 11781 11798 11858 12342 12348 12492 14399 14406 14574 14994 15092 15246 15268 15708 17003 17493 17697 17787 18326 18513 19404 21609 21861 22638 22902 23324 23562 23596 23716 24684 26411 26719 27489 28798 28812 29148 29988 30492 33957 34006 34353 34986 35394 35574 36652 37026 40817 41293 41503 41987 43197 43218 43722 45276 45804 47124 51009 52479 52822 53091 53361 53438 54978 57596 64141 64889 67914 68012 68706 69972 70788 71148 74052 79233 80157 81634 82467 82586 83006 83974 86394 86436 87444 100793 102018 104958 105644 106182 106722 106876 109956 119021 120409 122451 123879 124509 125961 128282 129591 129778 135828 137412 153027 158466 160314 163268 164934 165172 166012 167948 172788 187033 192423 194667 201586 204036 209916 212364 213444 237699 238042 240471 240818 244902 247758 249018 251922 256564 259182 259556 289051 290521 293909 302379 306054 316932 320628 329868 357063 361227 367353 371637 373527 374066 377883 384846 389334 403172 448987 454223 475398 476084 480942 481636 489804 495516 498036 503844 518364 561099 577269 578102 581042 584001 587818 604758 612108 705551 713779 714126 722454 734706 743274 747054 748132 755766 769692 778668 833147 842863 867153 871563 881727 897974 907137 908446 950796 961884 1071189 1083681 1122198 1154538 1156204 1162084 1168002 1175636 1209516 1309231 1324499 1346961 1362669 1411102 1427558 1428252 1444908 1469412 1486548 1494108 1511532 1666294 1683297 1685726 1734306 1743126 1763454 1795948 1814274 1816892 2023357 2046953 2057363 2116653 2141337 2142378 2167362 2244396 2309076 2336004 2499441 2528589 2601459 2614689 2618462 2645181 2648998 2693922 2725338 2822204 2855116 3179561 3332588 3366594 3371452 3468612 3486252 3526908 3628548 3927693 3973497 4040883 4046714 4088007 4093906 4114726 4233306 4282674 4284756 4334724 4938857 4996453 4998882 5057178 5202918 5229378 5236924 5290362 5297996 5387844 5450676 5900041 6070071 6140859 6172089 6349959 6359122 6424011 6733188 7498323 7585767 7855386 7946994 8081766 8093428 8176014 8187812 8229452 8466612 8565348 9164617 9271493 9538683 9877714 9992906 9997764 10114356 10405836 10458756 10580724 11783079 11800082 11920491 12140142 12281718 12344178 12699918 12718244 12848022 14163499 14328671 14401541 14569489 14816571 14989359 14996646 15171534 15710772 15893988 16163532 16352028 17700123 18210213 18329234 18422577 18516267 18542986 19077366 19755428 19985812 22256927 22516483 23566158 23600164 23840982 24280284 24563436 24688356 25399836 25696044 27493851 27814479 28326998 28616049 28657342 28803082 29138978 29633142 29978718 29993292 30343068 34975171 35400246 36420426 36658468 36845154 37032534 37085972 38154732 41300287 42490497 42986013 43204623 43708467 44449713 44513854 44968077 45032966 47132316 47681964 53100369 54987702 55628958 56653996 57232098 57314684 57606164 58277956 59266284 59957436 64900451 66770781 67549449 69950342 70800492 72840852 73690308 74065068 82481553 82600574 83443437 84980994 85972026 86409246 87416934 88899426 89027708 89936154 90065932 100300697 100810787 101986423 104925513 106200738 109975404 111257916 114464196 123900861 127471491 128958039 129613869 129800902 131125401 133541562 135098898 139900684 155798489 157615381 164963106 165201148 166886874 169961988 171944052 172818492 174833868 177798852 179872308 194701353 200312343 200601394 201621574 202648347 203972846 209851026 212401476 244826197 247681313 247801722 254942982 257916078 259227738 259601804 262250802 267083124 270197796 289102009 300902091 302432361 305959269 311596978 314776539 315230762 329926212 333773748 371702583 389402706 400624686 401202788 403243148 405296694 407945692 419702052 454303157 467395467 472846143 489652394 495362626 495603444 509885964 515832156 518455476 524501604 578204018 584104059 601804182 604864722 611918538 623193956 629553078 630461524 702104879 713904961 734478591 743043939 743405166 778805412 801249372 810593388 867306027 902706273 907297083 908606314 917877807 934790934 945692286 979304788 990725252 1103307667 1156408036 1168208118 1203608364 1209729444 1223837076 1259106156 1362909471 1402186401 1404209758 1418538429 1427809922 1468957182 1486087878 1486810332 1713783379 1733769191 1734612054 1805412546 1814594166 1817212628 1835755614 1869581868 1891384572 2106314637 2141714883 2203435773 2206615334 2229131817 2336416236 2601918081 2725818942 2804372802 2808419516 2837076858 2855619844 2937914364 2972175756 3180122099 3309923001 3427566758 3467538382 3469224108 3610825092 3629188332 3671511228 4088728413 4212629274 4283429766 4406871546 4413230668 4458263634 4914734153 4997334727 5141350137 5201307573 5203836162 5451637884 5608745604 5674153716 6318943911 6360244198 6425144649 6619846002 6855133516 6935076764 7723153669 8177456826 8425258548 8566859532 8813743092 8916527268 9540366297 9829468306 9929769003 9994669454 10282700274 10402615146 10407672324 12136384337 12637887822 12720488396 12850289298 13239692004 14744202459 14992004181 15424050411 15446307338 15603922719 16354913652 19080732594 19658936612 19859538006 19989338908 20565400548 20805230292 23169461007 24272768674 25275775644 25700578596 28621098891 29488404918 29984008362 30848100822 30892614676 31207845438 34981343089 36409153011 38161465188 39719076012 44232607377 44976012543 46338922014 48545537348 54062075683 57242197782 58976809836 59968016724 61696201644 62415690876 69508383021 69962686178 72818306022 84954690359 88465214754 89952025086 92677844028 104944029267 108124151366 109227459033 114484395564 139016766042 139925372356 145636612044 162186227049 169909380718 176930429508 179904050172 209888058534 216248302732 218454918066 254864071077 278033532084 314832087801 324372454098 339818761436 419776117068 436909836132 486558681147 509728142154 594682832513 629664175602 648744908196 764592213231 973117362294 1019456284308 1189365665026 1259328351204 1529184426462 1784048497539 1946234724588 2378731330052 3058368852924 3568096995078 5352145492617 7136193990156 10704290985234 21408581970468
• Sum of all divisors σ(n): 73687014733878
• Sum of proper divisors (its aliquot sum) s(n): 52278432763410
• 21408581970468 is an abundant number, because the sum of its proper divisors (52278432763410) is greater than itself. Its abundance is 30869850792942

Bases of 21408581970468

• Binary: 100110111100010010010111011000110101000100100₂
• Hexadecimal: 0x137892EC6A24
• Base-36: 7L6YSY9T0

Squares and roots of 21408581970468

• 21408581970468 squared (21408581970468²) is 458327381986247513624139024
• 21408581970468 cubed (21408581970468³) is 9812139326562578522900635902355894343232
• The square root of 21408581970468 is 4626940.8868568875
• The cube root of 21408581970468 is 27767.0217653933

Scales and comparisons

• 21,408,581,970,468 seconds is equal to 680,726 years, 35 weeks, 4 days, 13 hours, 7 minutes, 48 seconds.
• To count from 1 to 21,408,581,970,468 would take you about one million, seven hundred one thousand, eight hundred sixteen 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 21408581970468 cubic inches would be around 2313.9 feet tall.

Recreational maths with 21408581970468

• 21408581970468 backwards is 86407918580412
• 21408581970468 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21408581970468's digits is 63
• More coming soon!