21821309015220

Names of 21821309015220

• Cardinal: 21821309015220 can be written as Twenty-one trillion, eight hundred twenty-one billion, three hundred nine million, fifteen thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.182130901522 × 10¹³

Factors of 21821309015220

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 15125

Divisors of 21821309015220

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 13 15 17 18 20 22 26 30 33 34 36 39 44 45 51 52 55 60 65 66 68 78 85 90 99 102 110 117 121 130 132 143 153 156 165 170 180 187 195 198 204 220 221 234 242 255 260 286 306 307 330 340 363 374 390 396 429 442 468 484 495 510 561 572 585 605 612 614 660 663 715 726 748 765 780 858 884 921 935 990 1020 1089 1105 1122 1170 1210 1228 1287 1326 1430 1452 1530 1535 1573 1683 1716 1815 1842 1870 1980 1989 2057 2145 2178 2210 2244 2340 2420 2431 2574 2652 2763 2805 2860 3060 3070 3146 3315 3366 3377 3630 3684 3740 3978 3991 4114 4290 4356 4420 4605 4719 4862 5148 5219 5445 5526 5610 6140 6171 6292 6435 6630 6732 6754 7260 7293 7865 7956 7982 8228 8415 8580 9210 9438 9724 9945 10131 10285 10438 10890 11052 11220 11973 12155 12342 12870 13260 13508 13815 14157 14586 14767 15657 15730 15964 16830 16885 18420 18513 18876 19890 19955 20262 20570 20876 21780 21879 23595 23946 24310 24684 25740 26095 26741 27630 28314 29172 29534 30393 30855 31314 31460 33660 33770 35919 36465 37026 37147 39780 39910 40524 41140 43758 43901 44301 46971 47190 47892 48620 50655 52190 53482 55260 56628 57409 59068 59865 60786 61710 62628 67540 67847 70785 71838 72930 73835 74052 74294 78285 79820 80223 87516 87802 88602 92565 93942 94380 101310 104380 106964 109395 111441 114818 119730 121572 123420 131703 132903 133705 135694 141570 143676 145860 147670 148588 151965 156570 160446 162437 172227 175604 177204 179595 185130 185735 187884 191971 202620 203541 218790 219505 221505 222882 229636 234855 239460 240669 251039 263406 265806 267410 271388 283140 287045 295340 303930 313140 320892 324874 334323 339235 344454 359190 370260 371470 383942 395109 401115 407082 437580 439010 443010 445764 469710 481338 482911 487311 502078 516681 526812 531612 534820 557205 574090 575913 607860 610623 631499 649748 658515 664515 668646 678470 688908 718380 742940 746317 753117 767884 790218 802230 812185 814164 861135 878020 886020 939420 959855 962676 965822 974622 1004156 1017705 1033362 1114410 1148180 1151826 1203345 1221246 1255195 1262998 1317030 1329030 1337292 1356940 1448733 1461933 1492634 1506234 1580436 1604460 1624370 1671615 1722270 1727739 1786807 1894497 1919710 1931644 1949244 1975545 2035410 2066724 2111681 2228820 2238951 2259351 2303652 2406690 2414555 2436555 2442492 2510390 2525996 2583405 2634060 2658060 2761429 2879565 2897466 2923866 2985268 3012468 3053115 3157495 3248740 3263507 3343230 3444540 3455478 3573614 3731585 3765585 3788994 3839420 3951090 4070820 4223362 4346199 4477902 4518702 4533469 4813380 4829110 4873110 5020780 5166810 5360421 5522858 5683491 5759130 5794932 5847732 6106230 6314990 6335043 6527014 6686460 6716853 6910956 7147228 7243665 7309665 7463170 7531170 7577988 7902180 8209487 8284287 8446724 8638695 8692398 8934035 8955804 9037404 9066938 9472485 9658220 9746220 9790521 10333620 10558405 10720842 11045716 11194755 11296755 11366982 11518260 12212460 12629980 12670086 13054028 13433706 13600407 13807145 14487330 14619330 14926340 15062340 16081263 16317535 16418974 16568574 17277390 17384796 17868070 18133876 18944970 19005129 19581042 21116810 21441684 21730995 22389510 22593510 22667345 22733964 23228491 24628461 24852861 25340172 26802105 26867412 27200814 27614290 28417455 28974660 29238660 29371563 30375719 31675215 32162526 32635070 32837948 33137148 33584265 34554780 35736140 35898577 37889940 38010258 39162084 40801221 41047435 41421435 42233620 43461990 44779020 45187020 45334690 46456982 48952605 49256922 49705722 49868159 53604210 54401628 55228580 56834910 58743126 58935097 60751438 63350430 64325052 65270140 67168530 68002035 69685473 71797154 73885383 76020516 77068973 80406315 81602442 82094870 82842870 86923980 90669380 91127157 92913964 95025645 97905210 98513844 99411444 99736318 107208420 107695731 113669820 116142455 117486252 117870194 121502876 123142305 124264305 126700860 134337060 136004070 139370946 143594308 146857815 147770766 149604477 151878595 154137946 160812630 163204884 164189740 165685740 176805291 179492885 182254314 190051290 195810420 199472636 204006105 209056419 215391462 231206919 232284910 235740388 246284610 248528610 249340795 272008140 273381471 278741892 293715630 294675485 295541532 299208954 303757190 308275892 321625260 323087193 348427365 353610582 358985770 364508628 369426915 380102580 385344865 394884347 408012210 418112838 430782924 448813431 455635785 462413838 464569820 492569220 497057220 498681590 530415873 538478655 546762942 548549749 587431260 589350970 598417908 607514380 646174386 648286067 693620757 696854730 707221164 717971540 738853830 748022385 770689730 789768694 816024420 836225676 847758703 884026455 897626862 911271570 924827676 997363180 1001896649 1045282095 1060831746 1076957310 1093525884 1097099498 1156034595 1178701940 1184653041 1292348772 1296572134 1366907355 1387241514 1393709460 1477707660 1496044770 1541379460 1579537388 1615435965 1645649247 1695517406 1768052910 1795253724 1822543140 1944858201 1974421735 2003793298 2090564190 2121663492 2153914620 2194198996 2244067155 2312069190 2369306082 2543276109 2593144268 2652079365 2733814710 2742748745 2774483028 2992089540 3005689947 3230871930 3241430335 3291298494 3391034812 3468103785 3536105820 3553959123 3889716402 3948843470 4007586596 4181128380 4238793515 4488134310 4624138380 4738612164 4936947741 5009483245 5086552218 5304158730 5467629420 5485497490 5834574603 5923265205 6011379894 6461743860 6482860670 6582596988 6936207570 7107918246 7131146737 7629828327 7779432804 7897686940 8228246235 8477587030 8976268620 9017069841 9325345733 9724291005 9873895482 10018966490 10173104436 10608317460 10970994980 11020863139 11669149206 11846530410 12022759788 12716380545 12965721340 13872415140 14215836492 14262293474 15028449735 15259656654 16456492470 16955174060 17769795615 18034139682 18650691466 19448582010 19747790964 20037932980 21393440211 22041726278 23338298412 23693060820 24684738705 25432761090 27976037199 28524586948 29172873015 30056899470 30519313308 32912984940 33062589417 35539591230 35655733685 36068279364 37301382932 38149141635 38897164020 42786880422 44083452556 45085349205 46626728665 49369477410 50865522180 55104315695 55952074398 58345746030 60113798940 64180320633 66125178834 71079182460 71311467370 76298283270 83928111597 85573760844 90170698410 93253457330 98738954820 99187768251 106967201055 110208631390 111904148796 116691492060 121229494529 128360641266 132250357668 139880185995 142622934740 152596566540 165312947085 167856223194 180341396820 186506914660 198375536502 213934402110 220417262780 242458989058 256721282532 279760371990 320901603165 330625894170 335712446388 363688483587 396751073004 419640557985 427868804220 484917978116 495938841255 559520743980 606147472645 641803206330 661251788340 727376967174 839281115970 991877682510 1091065450761 1212294945290 1283606412660 1454753934348 1678562231940 1818442417935 1983755365020 2182130901522 2424589890580 3636884835870 4364261803044 5455327253805 7273769671740 10910654507610 21821309015220
• Sum of all divisors σ(n): 83237154384384
• Sum of proper divisors (its aliquot sum) s(n): 61415845369164
• 21821309015220 is an abundant number, because the sum of its proper divisors (61415845369164) is greater than itself. Its abundance is 39594536353944

Bases of 21821309015220

• Binary: 100111101100010101011010111110101010010110100₂
• Hexadecimal: 0x13D8AB5F54B4
• Base-36: 7QGKJZ7P0

Squares and roots of 21821309015220

• 21821309015220 squared (21821309015220²) is 476169527137721646191648400
• 21821309015220 cubed (21821309015220³) is 10390642395303409800572756410792488648000
• The square root of 21821309015220 is 4671328.3994191631
• The cube root of 21821309015220 is 27944.3234686285

Scales and comparisons

• 21,821,309,015,220 seconds is equal to 693,850 years, 6 weeks, 4 days, 22 hours, 27 minutes.
• To count from 1 to 21,821,309,015,220 would take you about one million, seven hundred thirty-four thousand, six hundred twenty-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 21821309015220 cubic inches would be around 2328.7 feet tall.

Recreational maths with 21821309015220

• 21821309015220 backwards is 02251090312812
• 21821309015220 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21821309015220's digits is 36
• More coming soon!