21249304128

Names of 21249304128

• Cardinal: 21249304128 can be written as Twenty-one billion, two hundred forty-nine million, three hundred four thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1249304128 × 10¹⁰

Factors of 21249304128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1802

Divisors of 21249304128

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 61 64 72 78 81 96 104 108 117 122 144 156 162 183 192 208 216 234 243 244 288 312 324 351 366 416 432 468 486 488 549 576 624 648 702 732 793 832 864 936 972 976 1053 1098 1248 1296 1404 1464 1586 1647 1723 1728 1872 1944 1952 2106 2196 2379 2496 2592 2808 2928 3159 3172 3294 3446 3744 3888 3904 4212 4392 4758 4941 5169 5184 5616 5856 6318 6344 6588 6892 7137 7488 7776 8424 8784 9516 9882 10338 11232 11712 12636 12688 13176 13784 14274 14823 15507 15552 16848 17568 19032 19764 20676 21411 22399 22464 25272 25376 26352 27568 28548 29646 31014 33696 35136 38064 39528 41352 42822 44798 46521 50544 50752 52704 55136 57096 59292 62028 64233 67197 67392 76128 79056 82704 85644 89596 93042 101088 105103 105408 110272 114192 118584 124056 128466 134394 139563 152256 158112 165408 171288 179192 186084 192699 201591 202176 210206 228384 237168 248112 256932 268788 279126 315309 316224 330816 342576 358384 372168 385398 403182 418689 420412 456768 474336 496224 513864 537576 558252 604773 630618 685152 716768 744336 770796 806364 837378 840824 945927 948672 992448 1027728 1075152 1116504 1209546 1261236 1366339 1370304 1433536 1488672 1541592 1612728 1674756 1681648 1814319 1891854 2055456 2150304 2233008 2419092 2522472 2732678 2837781 2977344 3083184 3225456 3349512 3363296 3628638 3783708 4099017 4110912 4300608 4466016 4838184 5044944 5442957 5465356 5675562 6166368 6450912 6699024 6726592 7257276 7567416 8198034 8513343 8932032 9676368 10089888 10885914 10930712 11351124 12297051 12332736 12901824 13398048 14514552 15134832 16396068 17026686 19352736 20179776 21771828 21861424 22702248 24594102 25540029 26796096 29029104 30269664 32792136 34053372 36891153 38705472 43543656 43722848 45404496 49188204 51080058 58058208 60539328 65584272 68106744 73782306 87087312 87445696 90808992 98376408 102160116 110673459 116116416 131168544 136213488 147564612 174174624 181617984 196752816 204320232 221346918 262337088 272426976 295129224 332020377 348349248 393505632 408640464 442693836 544853952 590258448 664040754 787011264 817280928 885387672 1180516896 1328081508 1634561856 1770775344 2361033792 2656163016 3541550688 5312326032 7083101376 10624652064 21249304128
• Sum of all divisors σ(n): 69177058496
• Sum of proper divisors (its aliquot sum) s(n): 47927754368
• 21249304128 is an abundant number, because the sum of its proper divisors (47927754368) is greater than itself. Its abundance is 26678450240

Bases of 21249304128

• Binary: 10011110010100011101010011001000000₂
• Hexadecimal: 0x4F28EA640
• Base-36: 9RFAC00

Squares and roots of 21249304128

• 21249304128 squared (21249304128²) is 451532925924237840384
• 21249304128 cubed (21249304128³) is 9594760466769825356925536305152
• The square root of 21249304128 is 145771.4105303231
• The cube root of 21249304128 is 2769.7988935919

Scales and comparisons

• 21,249,304,128 seconds is equal to 675 years, 34 weeks, 3 days, 28 minutes, 48 seconds.
• To count from 1 to 21,249,304,128 would take you about one thousand, three hundred fifty-one 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 21249304128 cubic inches would be around 230.8 feet tall.

Recreational maths with 21249304128

• 21249304128 backwards is 82140394212
• 21249304128 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21249304128's digits is 36
• More coming soon!