21500623872

Names of 21500623872

• Cardinal: 21500623872 can be written as Twenty-one billion, five hundred million, six hundred twenty-three thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.1500623872 × 10¹⁰

Factors of 21500623872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 883

Divisors of 21500623872

• Number of divisors d(n): 528
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 31 32 36 39 42 48 52 56 62 63 64 72 78 84 91 93 96 104 112 117 124 126 128 144 156 168 182 186 192 208 217 224 234 248 252 256 273 279 288 312 336 364 372 384 403 416 434 448 468 496 504 512 546 558 576 624 651 672 728 744 768 806 819 827 832 868 896 936 992 1008 1024 1092 1116 1152 1209 1248 1302 1344 1456 1488 1536 1612 1638 1654 1664 1736 1792 1872 1953 1984 2016 2184 2232 2304 2418 2481 2496 2604 2688 2821 2912 2976 3072 3224 3276 3308 3328 3472 3584 3627 3744 3906 3968 4032 4368 4464 4608 4836 4962 4992 5208 5376 5642 5789 5824 5952 6448 6552 6616 6656 6944 7168 7254 7443 7488 7812 7936 8064 8463 8736 8928 9216 9672 9924 9984 10416 10751 10752 11284 11578 11648 11904 12896 13104 13232 13312 13888 14508 14886 14976 15624 15872 16128 16926 17367 17472 17856 19344 19848 19968 20832 21502 21504 22568 23156 23296 23808 25389 25637 25792 26208 26464 27776 29016 29772 29952 31248 31744 32253 32256 33852 34734 34944 35712 38688 39696 39936 41664 43004 45136 46312 46592 47616 50778 51274 51584 52101 52416 52928 55552 58032 59544 59904 62496 64506 64512 67704 69468 69888 71424 75257 76911 77376 79392 83328 86008 90272 92624 93184 95232 96759 101556 102548 103168 104202 104832 105856 111104 116064 119088 119808 124992 129012 135408 138936 139776 142848 150514 153822 154752 158784 166656 172016 179459 180544 185248 193518 203112 205096 206336 208404 209664 211712 222208 225771 230733 232128 238176 249984 258024 270816 277872 279552 285696 301028 307644 309504 317568 333281 333312 344032 358918 361088 370496 387036 406224 410192 412672 416808 419328 423424 451542 461466 464256 476352 499968 516048 538377 541632 555744 602056 615288 619008 635136 666562 666624 677313 688064 717836 722176 740992 774072 812448 820384 833616 838656 846848 903084 922932 928512 952704 999843 999936 1032096 1076754 1083264 1111488 1204112 1230576 1238016 1270272 1333124 1354626 1376128 1435672 1444352 1481984 1548144 1615131 1624896 1640768 1667232 1806168 1845864 1857024 1905408 1999686 1999872 2064192 2153508 2166528 2222976 2332967 2408224 2461152 2540544 2666248 2709252 2752256 2871344 2888704 2963968 2999529 3096288 3230262 3249792 3281536 3334464 3612336 3691728 3714048 3810816 3999372 4128384 4307016 4333056 4445952 4665934 4816448 4922304 5332496 5418504 5504512 5742688 5927936 5999058 6192576 6460524 6499584 6563072 6668928 6998901 7224672 7383456 7621632 7998744 8256768 8614032 8666112 8891904 9331868 9632896 9844608 10664992 10837008 11009024 11485376 11998116 12385152 12921048 12999168 13126144 13337856 13997802 14449344 14766912 15997488 16513536 17228064 17783808 18663736 19265792 19689216 20996703 21329984 21674016 22970752 23996232 24770304 25842096 25998336 26252288 26675712 27995604 28898688 29533824 31994976 33027072 34456128 37327472 38531584 39378432 41993406 42659968 43348032 45941504 47992464 49540608 51684192 53351424 55991208 57797376 59067648 63989952 68912256 74654944 77063168 78756864 83986812 85319936 86696064 91883008 95984928 99081216 103368384 111982416 115594752 118135296 127979904 137824512 149309888 167973624 170639872 173392128 183766016 191969856 206736768 223964832 231189504 236270592 255959808 275649024 298619776 335947248 341279744 346784256 383939712 413473536 447929664 511919616 551298048 597239552 671894496 693568512 767879424 826947072 895859328 1023839232 1194479104 1343788992 1535758848 1653894144 1791718656 2388958208 2687577984 3071517696 3583437312 5375155968 7166874624 10750311936 21500623872
• Sum of all divisors σ(n): 78969526272
• Sum of proper divisors (its aliquot sum) s(n): 57468902400
• 21500623872 is an abundant number, because the sum of its proper divisors (57468902400) is greater than itself. Its abundance is 35968278528

Bases of 21500623872

• Binary: 10100000001100010010111110000000000₂
• Hexadecimal: 0x501897C00
• Base-36: 9VKWZK0

Squares and roots of 21500623872

• 21500623872 squared (21500623872²) is 462276826885216272384
• 21500623872 cubed (21500623872³) is 9939240179600692389902284750848
• The square root of 21500623872 is 146630.9103565821
• The cube root of 21500623872 is 2780.6757786435

Scales and comparisons

• 21,500,623,872 seconds is equal to 683 years, 33 weeks, 6 days, 19 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,500,623,872 would take you about one thousand, three hundred sixty-seven 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 21500623872 cubic inches would be around 231.7 feet tall.

Recreational maths with 21500623872

• 21500623872 backwards is 27832600512
• 21500623872 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21500623872's digits is 36
• More coming soon!