21315888792

Names of 21315888792

• Cardinal: 21315888792 can be written as Twenty-one billion, three hundred fifteen million, eight hundred eighty-eight thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 2.1315888792 × 10¹⁰

Factors of 21315888792

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 392

Divisors of 21315888792

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 18 22 24 29 33 36 43 44 58 66 72 86 87 88 99 113 116 129 132 172 174 191 198 226 232 258 261 264 319 339 344 348 382 387 396 452 473 516 522 573 638 678 696 764 774 792 904 946 957 1017 1032 1044 1146 1243 1247 1276 1356 1419 1528 1548 1719 1892 1914 2034 2088 2101 2292 2486 2494 2552 2712 2838 2871 3096 3277 3438 3729 3741 3784 3828 4068 4202 4257 4584 4859 4972 4988 5539 5676 5742 6303 6554 6876 7458 7482 7656 8136 8213 8404 8514 9718 9831 9944 9976 11078 11187 11223 11352 11484 12606 13108 13717 13752 14577 14916 14964 16426 16617 16808 17028 18909 19436 19662 21583 22156 22374 22446 22968 24639 25212 26216 27434 29154 29493 29832 29928 32852 33234 34056 36047 37818 38872 39324 41151 43166 43731 44312 44748 44892 49278 49851 50424 53449 54868 58308 58986 60929 64749 65704 66468 72094 73917 75636 78648 82302 86332 87462 89496 89784 90343 98556 99702 106898 108141 109736 116616 117972 121858 123453 129498 132936 140911 144188 147834 151272 160347 164604 172664 174924 180686 182787 194247 197112 199404 213796 216282 235944 237413 238177 243716 246906 258996 271029 281822 288376 295668 320694 324423 329208 349848 361372 365574 388494 398808 422733 427592 432564 474826 476354 481041 487432 493812 517992 542058 548361 563644 591336 625907 641388 648846 712239 714531 722744 731148 776988 813087 845466 865128 928069 949652 952708 962082 987624 1084116 1096722 1127288 1251814 1268199 1282776 1297692 1424478 1429062 1462296 1550021 1553976 1626174 1690932 1856138 1877721 1899304 1905416 1924164 2136717 2143593 2168232 2193444 2503628 2536398 2595384 2619947 2784207 2848956 2858124 3100042 3252348 3381864 3712276 3755442 3848328 4273434 4287186 4386888 4650063 5007256 5072796 5239894 5568414 5633163 5697912 5716248 6200084 6504696 6884977 7424552 7510884 7859841 8352621 8546868 8574372 9300126 10145592 10208759 10479788 11136828 11266326 12400168 13769954 13950189 15021768 15719682 16705242 17093736 17148744 18600252 20417518 20654931 20959576 22273656 22532652 23579523 26914001 27539908 27900378 30626277 31439364 33410484 37200504 40835036 41309862 45065304 47159046 53828002 55079816 55800756 61252554 61964793 62878728 66820968 80742003 81670072 82619724 91878831 94318092 107656004 111601512 122505108 123929586 161484006 165239448 183757662 188636184 215312008 242226009 245010216 247859172 296054011 322968012 367515324 484452018 495718344 592108022 645936024 735030648 888162033 968904036 1184216044 1776324066 1937808072 2368432088 2664486099 3552648132 5328972198 7105296264 10657944396 21315888792
• Sum of all divisors σ(n): 67607654400
• Sum of proper divisors (its aliquot sum) s(n): 46291765608
• 21315888792 is an abundant number, because the sum of its proper divisors (46291765608) is greater than itself. Its abundance is 24975876816

Bases of 21315888792

• Binary: 10011110110100001101010011010011000₂
• Hexadecimal: 0x4F686A698
• Base-36: 9SIXH20

Squares and roots of 21315888792

• 21315888792 squared (21315888792²) is 454367114992911219264
• 21315888792 cubed (21315888792³) is 9685238893930771418160552089088
• The square root of 21315888792 is 145999.6191501883
• The cube root of 21315888792 is 2772.6889306681

Scales and comparisons

• 21,315,888,792 seconds is equal to 677 years, 40 weeks, 3 days, 16 hours, 13 minutes, 12 seconds.
• To count from 1 to 21,315,888,792 would take you about one thousand, three hundred fifty-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 21315888792 cubic inches would be around 231.1 feet tall.

Recreational maths with 21315888792

• 21315888792 backwards is 29788851312
• The number of decimal digits it has is: 11
• The sum of 21315888792's digits is 54
• More coming soon!