21019379472

Names of 21019379472

• Cardinal: 21019379472 can be written as Twenty-one billion, nineteen million, three hundred seventy-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.1019379472 × 10¹⁰

Factors of 21019379472

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 89

Divisors of 21019379472

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 23 24 26 27 28 36 39 41 42 46 48 49 52 54 56 63 69 72 78 81 82 84 91 92 98 104 108 112 117 123 126 138 144 147 156 161 162 164 168 182 184 189 196 207 208 216 234 243 246 252 273 276 287 294 299 312 322 324 328 336 351 364 368 369 378 392 414 432 441 468 483 486 492 504 533 546 552 567 574 588 598 621 624 637 644 648 656 702 728 729 738 756 784 819 828 861 882 897 936 943 966 972 984 1008 1053 1066 1092 1104 1107 1127 1134 1148 1176 1196 1242 1274 1288 1296 1323 1404 1449 1456 1458 1476 1512 1599 1638 1656 1701 1722 1764 1794 1863 1872 1886 1911 1932 1944 1968 2009 2093 2106 2132 2184 2187 2214 2254 2268 2296 2352 2392 2457 2484 2548 2576 2583 2646 2691 2808 2829 2898 2916 2952 3024 3159 3198 3276 3312 3321 3381 3402 3444 3528 3588 3726 3731 3772 3822 3864 3888 3969 4018 4186 4212 4264 4347 4368 4374 4428 4508 4536 4592 4784 4797 4914 4968 5096 5103 5166 5292 5382 5589 5616 5658 5733 5796 5832 5904 6027 6279 6318 6396 6552 6601 6642 6762 6804 6888 7056 7176 7371 7452 7462 7544 7644 7728 7749 7938 8036 8073 8372 8424 8487 8528 8694 8748 8856 9016 9072 9477 9594 9828 9936 9963 10143 10192 10206 10332 10584 10764 11178 11193 11316 11466 11592 11664 11907 12054 12259 12558 12636 12792 13041 13104 13202 13284 13524 13608 13776 14352 14391 14651 14742 14904 14924 15088 15288 15309 15498 15876 16072 16146 16744 16767 16848 16974 17199 17388 17496 17712 18032 18081 18837 18954 19188 19656 19803 19926 20286 20412 20664 21168 21528 22113 22356 22386 22632 22932 23184 23247 23814 24108 24219 24518 25116 25272 25461 25584 26082 26117 26404 26568 27048 27216 28431 28782 29302 29484 29808 29848 29889 30429 30576 30618 30996 31752 32144 32292 33488 33534 33579 33948 34398 34776 34992 35721 36162 36777 37674 37908 38376 39123 39312 39606 39852 40572 40824 41328 43056 43173 43953 44226 44712 44772 45264 45864 46207 46494 47628 48216 48438 49036 50232 50301 50544 50922 51597 52164 52234 52808 53136 54096 54243 56511 56862 57564 58604 58968 59409 59696 59778 60858 61236 61992 63504 64584 66339 67068 67158 67896 68796 69552 69741 71442 72324 72657 73554 75348 75816 76383 76752 78246 78351 79212 79704 81144 81648 85813 86346 87906 88452 89424 89544 89667 91287 91728 92414 92988 95256 96432 96876 98072 100464 100602 100737 101844 103194 104328 104468 105616 107163 108486 110331 113022 113724 115128 117208 117369 117936 118818 119556 121716 122472 123984 129168 129519 131859 132678 134136 134316 135792 137592 138621 139482 142884 144648 145314 147108 150696 151632 152766 154791 156492 156702 158424 159408 162288 162729 169533 171626 172692 175812 176904 178227 179088 179334 182574 184828 185976 190512 193752 196144 199017 201204 201474 203688 206388 208656 208936 209223 214326 216972 217971 220662 226044 227448 229149 230256 234416 234738 235053 237636 239112 243432 244944 257439 259038 263718 265356 268272 268632 273861 275184 277242 278964 285768 289296 290628 294216 301392 302211 305532 309582 312984 313404 316848 325458 330993 339066 343252 345384 351624 352107 353808 356454 358668 365148 369656 371952 387504 388557 395577 398034 402408 402948 407376 412776 415863 417872 418446 428652 433944 435942 441324 452088 454896 458298 464373 469476 470106 475272 478224 486864 488187 508599 514878 518076 527436 530712 534681 537264 547722 554484 557928 571536 581256 588432 600691 604422 611064 619164 625968 626808 627669 650916 653913 661986 678132 686504 687447 690768 703248 704214 705159 712908 717336 730296 739312 772317 777114 791154 796068 804816 805896 821583 825552 831726 836892 857304 867888 871884 882648 904176 906633 916596 928746 938952 940212 950544 976374 992979 1017198 1029756 1036152 1054872 1061424 1069362 1095444 1108968 1115856 1162512 1165671 1186731 1201382 1208844 1222128 1238328 1247589 1253616 1255338 1301832 1307826 1323972 1356264 1373008 1374894 1393119 1408428 1410318 1425816 1434672 1460592 1464561 1525797 1544634 1554228 1582308 1592136 1604043 1611792 1643166 1663452 1673784 1714608 1743768 1765296 1802073 1813266 1833192 1857492 1877904 1880424 1952748 1985958 2034396 2059512 2062341 2072304 2109744 2115477 2138724 2190888 2217936 2316951 2331342 2373462 2402764 2417688 2464749 2476656 2495178 2510676 2603664 2615652 2647944 2712528 2719899 2749788 2786238 2816856 2820636 2851632 2929122 2978937 3051594 3089268 3108456 3164616 3184272 3208086 3286332 3326904 3347568 3487536 3560193 3604146 3626532 3666384 3714984 3742767 3760848 3905496 3971916 4068792 4119024 4124682 4230954 4277448 4381776 4393683 4577391 4633902 4662684 4746924 4805528 4812129 4835376 4929498 4990356 5021352 5231304 5295888 5406219 5439798 5499576 5572476 5633712 5641272 5858244 5957874 6103188 6178536 6216912 6329232 6346431 6416172 6572664 6653808 6950853 7120386 7208292 7253064 7429968 7485534 7810992 7943832 8137584 8159697 8249364 8461908 8554896 8787366 8936811 9154782 9267804 9325368 9493848 9611056 9624258 9858996 9980712 10042704 10462608 10680579 10812438 10879596 10999152 11144952 11228301 11282544 11716488 11915748 12206376 12357072 12692862 12832344 13145328 13901706 14240772 14416584 14436387 14506128 14971068 15887664 16218657 16319394 16498728 16923816 17574732 17873622 18309564 18535608 18650736 18987696 19039293 19248516 19717992 19961424 20852559 21361158 21624876 21759192 22289904 22456602 23432976 23831496 24412752 25385724 25664688 26810433 27803412 28481544 28833168 28872774 29942136 32041737 32437314 32638788 32997456 33684903 33847632 35149464 35747244 36619128 37071216 38078586 38497032 39435984 41705118 42722316 43249752 43518384 44913204 47662992 48655971 50771448 53620866 55606824 56963088 57117879 57745548 59884272 62557677 64083474 64874628 65277576 67369806 70298928 71494488 73238256 76157172 76994064 83410236 85444632 86499504 89826408 97311942 101054709 101542896 107241732 111213648 114235758 115491096 125115354 128166948 129749256 130555152 134739612 142988976 145967913 152314344 166820472 170889264 179652816 187673031 194623884 202109418 214483464 228471516 230982192 250230708 256333896 259498512 269479224 291935826 304628688 333640944 375346062 389247768 404218836 428966928 437903739 456943032 500461416 512667792 538958448 583871652 750692124 778495536 808437672 875807478 913886064 1000922832 1167743304 1313711217 1501384248 1616875344 1751614956 2335486608 2627422434 3002768496 3503229912 5254844868 7006459824 10509689736 21019379472
• Sum of all divisors σ(n): 81789765120
• Sum of proper divisors (its aliquot sum) s(n): 60770385648
• 21019379472 is an abundant number, because the sum of its proper divisors (60770385648) is greater than itself. Its abundance is 39751006176

Bases of 21019379472

• Binary: 10011100100110110100100011100010000₂
• Hexadecimal: 0x4E4DA4710
• Base-36: 9NME900

Squares and roots of 21019379472

• 21019379472 squared (21019379472²) is 441814313387934998784
• 21019379472 cubed (21019379472³) is 9286662709262135685910754562048
• The square root of 21019379472 is 144980.6175735225
• The cube root of 21019379472 is 2759.7725899587

Scales and comparisons

• 21,019,379,472 seconds is equal to 668 years, 18 weeks, 1 day, 20 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,019,379,472 would take you about one thousand, three hundred thirty-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 21019379472 cubic inches would be around 230 feet tall.

Recreational maths with 21019379472

• 21019379472 backwards is 27497391012
• The number of decimal digits it has is: 11
• The sum of 21019379472's digits is 45
• More coming soon!