21331438128

Names of 21331438128

• Cardinal: 21331438128 can be written as Twenty-one billion, three hundred thirty-one million, four hundred thirty-eight thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1331438128 × 10¹⁰

Factors of 21331438128

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 65

Divisors of 21331438128

• Number of divisors d(n): 1080
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 13 14 16 18 21 22 24 26 27 28 29 33 36 39 42 44 48 49 52 54 56 58 63 66 72 77 78 81 84 87 88 91 98 99 104 108 112 116 117 126 132 143 144 147 154 156 162 168 174 176 182 189 196 198 203 208 216 231 232 234 243 252 261 264 273 286 294 297 308 312 319 324 336 348 351 364 377 378 392 396 406 429 432 441 462 464 468 486 504 522 528 539 546 567 572 588 594 609 616 624 637 638 648 693 696 702 728 729 754 756 783 784 792 812 819 858 882 891 924 936 957 972 1001 1008 1044 1053 1078 1092 1131 1134 1144 1176 1188 1218 1232 1274 1276 1287 1296 1323 1386 1392 1404 1421 1456 1458 1508 1512 1566 1584 1617 1624 1638 1701 1716 1764 1782 1827 1848 1872 1911 1914 1944 2002 2079 2088 2106 2156 2184 2187 2233 2262 2268 2288 2349 2352 2376 2436 2457 2548 2552 2574 2639 2646 2673 2772 2808 2842 2871 2916 3003 3016 3024 3132 3159 3234 3248 3276 3393 3402 3432 3528 3564 3654 3696 3822 3828 3861 3888 3969 4004 4147 4158 4176 4212 4263 4312 4368 4374 4466 4524 4536 4698 4752 4851 4872 4914 5096 5103 5104 5148 5278 5292 5346 5481 5544 5616 5684 5733 5742 5832 6006 6032 6237 6264 6318 6468 6552 6561 6699 6786 6804 6864 7007 7047 7056 7128 7308 7371 7644 7656 7722 7917 7938 8008 8019 8294 8316 8424 8526 8613 8624 8748 8932 9009 9048 9072 9396 9477 9702 9744 9828 10179 10192 10206 10296 10556 10584 10692 10962 11088 11368 11466 11484 11583 11664 11907 12012 12441 12474 12528 12636 12789 12936 13104 13122 13398 13572 13608 14014 14094 14256 14553 14616 14742 15288 15309 15312 15444 15631 15834 15876 16016 16038 16443 16588 16632 16848 17052 17199 17226 17496 17864 18018 18096 18473 18711 18792 18954 19404 19656 20097 20358 20412 20592 21021 21112 21141 21168 21384 21924 22113 22736 22932 22968 23166 23751 23814 24024 24057 24882 24948 25272 25578 25839 25872 26244 26796 27027 27144 27216 28028 28188 28431 29029 29106 29232 29484 30537 30576 30618 30888 31262 31668 31752 32076 32886 33176 33264 34104 34398 34452 34749 34992 35721 35728 36036 36946 37323 37422 37584 37908 38367 38808 39312 40194 40716 40824 42042 42224 42282 42768 43659 43848 44226 45864 45927 45936 46332 46893 47502 47628 48048 48114 49329 49764 49896 50544 51156 51597 51678 52488 53592 54054 54288 55419 56056 56133 56376 56862 58058 58212 58968 60291 61074 61236 61776 62524 63063 63336 63423 63504 64152 65772 66339 66352 68208 68796 68904 69498 71253 71442 72072 72171 73892 74646 74844 75816 76734 77517 77616 80388 81081 81432 81648 84084 84564 85293 87087 87318 87696 88452 91611 91728 91854 92664 93786 95004 95256 96228 98658 99528 99792 102312 103194 103356 104247 104976 107163 107184 108108 110838 111969 112112 112266 112752 113724 115101 116116 116424 117936 120582 122148 122472 125048 126126 126672 126846 128304 130977 131544 132678 137592 137808 138996 140679 142506 142884 144144 144342 147784 147987 149292 149688 151632 153468 154791 155034 160776 162162 162864 166257 168168 168399 169128 170586 174174 174636 176904 180873 183222 183708 185328 187572 189189 190008 190269 190512 192456 197316 199017 199056 203203 204624 206388 206712 208494 213759 214326 216216 221676 223938 224532 227448 230202 232232 232551 232848 241164 243243 244296 244944 250096 252252 253692 261261 261954 263088 265356 274833 275184 277992 281358 285012 285768 288684 295568 295974 298584 299376 306936 309582 310068 312741 321489 321552 324324 332514 335907 336336 336798 338256 341172 345303 348348 349272 353808 361746 366444 367416 375144 378378 380016 380538 384912 392931 394632 398034 406406 412776 413424 416988 422037 427518 428652 432432 443352 443961 447876 449064 454896 460404 464373 464464 465102 482328 486486 488592 498771 504504 505197 507384 522522 523908 530712 542619 549666 555984 562716 567567 570024 571536 577368 591948 597051 597168 609609 613872 619164 620136 625482 641277 642978 648648 665028 671814 673596 682344 690606 696696 697653 698544 723492 729729 732888 734832 750288 756756 761076 783783 785862 789264 796068 812812 824499 825552 833976 844074 855036 857304 886704 887922 895752 898128 920808 928746 930204 938223 964656 972972 997542 1007721 1009008 1010394 1014768 1035909 1045044 1047816 1061424 1085238 1099332 1125432 1135134 1140048 1154736 1178793 1183896 1194102 1219218 1238328 1240272 1250964 1266111 1282554 1285956 1297296 1330056 1331883 1343628 1347192 1364688 1381212 1393119 1393392 1395306 1446984 1459458 1465776 1496313 1513512 1522152 1567566 1571724 1592136 1625624 1627857 1648998 1667952 1688148 1702701 1710072 1714608 1775844 1791504 1828827 1841616 1857492 1860408 1876446 1923831 1945944 1995084 2015442 2020788 2071818 2090088 2092959 2095632 2170476 2189187 2198664 2250864 2270268 2351349 2357586 2367792 2388204 2438436 2473497 2476656 2501928 2532222 2565108 2571912 2660112 2663766 2687256 2694384 2762424 2786238 2790612 2893968 2918916 2992626 3023163 3027024 3044304 3107727 3135132 3143448 3184272 3251248 3255714 3297996 3376296 3405402 3420144 3536379 3551688 3657654 3714984 3720816 3752892 3798333 3847662 3891888 3990168 4030884 4041576 4143636 4179357 4180176 4185918 4340952 4378374 4397328 4488939 4540536 4702698 4715172 4776408 4876872 4883571 4946994 5003856 5064444 5108103 5130216 5143824 5327532 5374512 5486481 5524848 5572476 5581224 5771493 5837832 5985252 6046326 6215454 6270264 6286896 6511428 6567561 6595992 6752592 6810804 7054047 7072758 7103376 7315308 7429968 7505784 7596666 7695324 7980336 8061768 8083152 8287272 8358714 8371836 8681904 8756748 8977878 9069489 9081072 9323181 9405396 9430344 9552816 9753744 9767142 9893988 10128888 10216206 10260432 10655064 10972962 11144952 11162448 11394999 11542986 11675664 11970504 12092652 12430908 12540528 13022856 13135122 13191984 13466817 13621608 14108094 14145516 14630616 14650713 15011568 15193332 15324309 15390648 16123536 16459443 16574544 16717428 16743672 17314479 17513496 17955756 18138978 18646362 18810792 18860688 19534284 19787976 20257776 20432412 21162141 21310128 21945924 22289904 22789998 23085972 23941008 24185304 24861816 26045712 26270244 26933634 27208467 27243216 28216188 28291032 29261232 29301426 30386664 30648618 30781296 32918886 33434856 33487344 34184997 34628958 35026992 35911512 36277956 37292724 37621584 39068568 39575952 40400451 40864824 42324282 43891848 45579996 45972927 46171944 48370608 49378329 49723632 52540488 53867268 54416934 56432376 56582064 58602852 60773328 61297236 63486423 65837772 66869712 68369994 69257916 71823024 72555912 74585448 78137136 80800902 81729648 84648564 87783696 91159992 91945854 92343888 98756658 102554991 105080976 107734536 108833868 112864752 117205704 121201353 122594472 126972846 131675544 136739988 138515832 145111824 148134987 149170896 161601804 169297128 182319984 183891708 190459269 197513316 205109982 215469072 217667736 234411408 242402706 245188944 253945692 263351088 273479976 277031664 296269974 323203608 338594256 367783416 380918538 395026632 410219964 435335472 444404961 484805412 507891384 546959952 592539948 646407216 735566832 761837076 790053264 820439928 888809922 969610824 1015782768 1185079896 1333214883 1523674152 1640879856 1777619844 1939221648 2370159792 2666429766 3047348304 3555239688 5332859532 7110479376 10665719064 21331438128
• Sum of all divisors σ(n): 87640796880
• Sum of proper divisors (its aliquot sum) s(n): 66309358752
• 21331438128 is an abundant number, because the sum of its proper divisors (66309358752) is greater than itself. Its abundance is 44977920624

Bases of 21331438128

• Binary: 10011110111011100111110101000110000₂
• Hexadecimal: 0x4F773EA30
• Base-36: 9SS6R00

Squares and roots of 21331438128

• 21331438128 squared (21331438128²) is 455030252608692144384
• 21331438128 cubed (21331438128³) is 9706449679890527072926938673152
• The square root of 21331438128 is 146052.8607319969
• The cube root of 21331438128 is 2773.3629660963

Scales and comparisons

• 21,331,438,128 seconds is equal to 678 years, 14 weeks, 1 day, 15 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,331,438,128 would take you about one thousand, three hundred fifty-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 21331438128 cubic inches would be around 231.1 feet tall.

Recreational maths with 21331438128

• 21331438128 backwards is 82183413312
• 21331438128 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21331438128's digits is 36
• More coming soon!