21451228572942

Names of 21451228572942

• Cardinal: 21451228572942 can be written as Twenty-one trillion, four hundred fifty-one billion, two hundred twenty-eight million, five hundred seventy-two thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 2.1451228572942 × 10¹³

Factors of 21451228572942

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 120

Divisors of 21451228572942

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 29 42 49 54 58 63 79 81 87 98 126 147 158 162 174 189 203 237 243 261 294 343 378 406 441 474 486 522 553 567 609 686 711 729 783 882 1029 1106 1134 1218 1323 1421 1422 1458 1566 1659 1701 1827 2058 2133 2187 2291 2349 2646 2842 3087 3318 3402 3654 3871 3969 4263 4266 4374 4582 4698 4977 5103 5481 6174 6241 6399 6873 7047 7742 7938 8526 9261 9947 9954 10206 10962 11613 11907 12482 12789 12798 13746 14094 14931 15309 16037 16443 18522 18723 19197 19894 20619 21141 23226 23814 25578 27097 27783 29841 29862 30618 32074 32886 34839 35721 37446 38367 38394 41238 42282 43687 44793 48111 49329 54194 55566 56169 57591 59682 61857 63423 69678 71442 76734 81291 83349 87374 89523 89586 96222 98658 104517 107163 112259 112338 115101 115182 123714 126846 131061 134379 144333 147987 162582 166698 168507 172773 179046 180989 185571 209034 214326 224518 230202 243873 250047 262122 268569 268758 288666 295974 305809 313551 336777 337014 345303 345546 361978 371142 393183 403137 432999 443961 487746 493039 500094 505521 537138 542967 556713 611618 627102 673554 690606 731619 750141 785813 786366 805707 806274 865998 887922 917427 940653 986078 1010331 1011042 1035909 1085934 1113426 1179549 1209411 1266923 1298997 1463238 1479117 1500282 1516563 1571626 1611414 1628901 1670139 1834854 1881306 2020662 2071818 2140663 2194857 2357439 2359098 2417121 2418822 2533846 2597994 2752281 2821959 2958234 3030993 3033126 3107727 3257802 3340278 3451273 3538647 3800769 3896991 4281326 4389714 4437351 4549689 4714878 4834242 4886703 5010417 5504562 5643918 6061986 6215454 6421989 6584571 6902546 7072317 7077294 7251363 7601538 7793982 8256843 8465877 8868461 8874702 9092979 9099378 9773406 10020834 10353819 10615941 11402307 11690973 12843978 13169142 13312053 13649067 14144634 14298131 14502726 14660109 16513686 16931754 17736922 18185958 19265967 19753713 20707638 21216951 21231882 21754089 22804614 23381946 24158911 24770529 26605383 26624106 27278937 27298134 28596262 29320218 31061457 31847823 34206921 35072919 38531934 39507426 39936159 42433902 42894393 43508178 43980327 48317822 49541058 53210766 54557874 57797901 59261139 62079227 62122914 63650853 63695646 68413842 70145838 72476733 74311587 79816149 79872318 81836811 85788786 87960654 93184371 95543469 100086917 102620763 115595802 118522278 119808477 124158454 127301706 128683179 131940981 144953466 148623174 159632298 163673622 169112377 173393703 186237681 186368742 190952559 191086938 200173834 205241526 217430199 222934761 239448447 239616954 245510433 257366358 263881962 279553113 300260751 307862289 338224754 346787406 359425431 372475362 381905118 386049537 395822943 434860398 445869522 478896894 491020866 507337131 520181109 558713043 559106226 572857677 600521502 615724578 652290597 668804283 700608419 718345341 718850862 772099074 791645886 838659339 900782253 923586867 1014674262 1040362218 1078276293 1117426086 1145715354 1158148611 1304581194 1337608566 1401216838 1436690682 1522011393 1560543327 1676139129 1677318678 1718573031 1801564506 1847173734 1956871791 2101825257 2155036023 2156552586 2316297222 2515978017 2702346759 2770760601 3044022786 3121086654 3352278258 3437146062 3474445833 3913743582 4203650514 4310072046 4566034179 4681629981 4904258933 5028417387 5031956034 5404693518 5541521202 5870615373 6305475771 6465108069 6948891666 7547934051 8107040277 9132068358 9363259962 9808517866 10056834774 10423337499 11741230746 12610951542 12930216138 13698102537 14712776799 15085252161 15095868102 16214080554 17611846119 18916427313 19395324207 20846674998 24321120831 27396205074 29425553598 30170504322 31270012497 35223692238 37832854626 38790648414 41094307611 44138330397 45255756483 48642241662 52835538357 56749281939 62540024994 72963362493 82188615222 88276660794 90511512966 105671076714 113498563878 123282922833 132414991191 135767269449 145926724986 170247845817 218890087479 246565845666 264829982382 271534538898 340495691634 369848768499 397244973573 437780174958 510743537451 739697536998 794489947146 1021487074902 1191734920719 1532230612353 2383469841438 3064461224706 3575204762157 7150409524314 10725614286471 21451228572942
• Sum of all divisors σ(n): 58964428800000
• Sum of proper divisors (its aliquot sum) s(n): 37513200227058
• 21451228572942 is an abundant number, because the sum of its proper divisors (37513200227058) is greater than itself. Its abundance is 16061971654116

Bases of 21451228572942

• Binary: 100111000001010000000110110111110110100001110₂
• Hexadecimal: 0x138280DBED0E
• Base-36: 7LQK3MYVI

Squares and roots of 21451228572942

• 21451228572942 squared (21451228572942²) is 460155207288603273814535364
• 21451228572942 cubed (21451228572942³) is 9870894530577335402488964713074512520888
• The square root of 21451228572942 is 4631547.1036082533
• The cube root of 21451228572942 is 27785.4471443439

Scales and comparisons

• 21,451,228,572,942 seconds is equal to 682,082 years, 37 weeks, 1 day, 11 hours, 35 minutes, 42 seconds.
• To count from 1 to 21,451,228,572,942 would take you about one million, seven hundred five thousand, two hundred six 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 21451228572942 cubic inches would be around 2315.5 feet tall.

Recreational maths with 21451228572942

• 21451228572942 backwards is 24927582215412
• 21451228572942 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21451228572942's digits is 54
• More coming soon!