21084551904

Names of 21084551904

• Cardinal: 21084551904 can be written as Twenty-one billion, eighty-four million, five hundred fifty-one thousand, nine hundred four.

Scientific notation

• Scientific notation: 2.1084551904 × 10¹⁰

Factors of 21084551904

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 443

Divisors of 21084551904

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 23 24 26 32 39 46 48 52 69 78 92 96 104 109 138 156 184 208 218 276 293 299 312 327 368 416 436 529 552 586 598 624 654 736 872 879 897 1058 1104 1172 1196 1248 1308 1417 1587 1744 1758 1794 2116 2208 2344 2392 2507 2616 2834 3174 3488 3516 3588 3809 4232 4251 4688 4784 5014 5232 5668 6348 6739 6877 7032 7176 7521 7618 8464 8502 9376 9568 10028 10464 11336 11427 12696 13478 13754 14064 14352 15042 15236 16928 17004 20056 20217 20631 22672 22854 25392 26956 27508 28128 28704 30084 30472 31937 32591 34008 40112 40434 41262 45344 45708 50784 53912 55016 57661 60168 60944 63874 65182 68016 80224 80868 82524 87607 91416 95811 97773 107824 110032 115322 120336 121888 127748 130364 136032 154997 161736 165048 172983 175214 182832 191622 195546 215648 220064 230644 240672 255496 260728 262821 309994 323472 330096 345966 350428 365664 383244 391092 415181 461288 464991 510992 521456 525642 619988 646944 660192 691932 700856 734551 749593 766488 782184 830362 922576 929982 1021984 1042912 1051284 1239976 1245543 1383864 1401712 1469102 1499186 1532976 1564368 1660724 1845152 1859964 2014961 2102568 2203653 2248779 2479952 2491086 2767728 2803424 2938204 2998372 3065952 3128736 3321448 3719928 4029922 4205136 4407306 4497558 4959904 4982172 5535456 5876408 5996744 6044883 6642896 7439856 8059844 8410272 8814612 8995116 9549163 9964344 11752816 11993488 12089766 13285792 14879712 16119688 16894673 17629224 17990232 19098326 19928688 23505632 23986976 24179532 28647489 32239376 33789346 35258448 35980464 38196652 39857376 48359064 50684019 57294978 64478752 67578692 70516896 71960928 76393304 96718128 101368038 114589956 135157384 152786608 193436256 202736076 219630749 229179912 270314768 305573216 405472152 439261498 458359824 540629536 658892247 810944304 878522996 916719648 1317784494 1621888608 1757045992 2635568988 3514091984 5271137976 7028183968 10542275952 21084551904
• Sum of all divisors σ(n): 63094822560
• Sum of proper divisors (its aliquot sum) s(n): 42010270656
• 21084551904 is an abundant number, because the sum of its proper divisors (42010270656) is greater than itself. Its abundance is 20925718752

Bases of 21084551904

• Binary: 10011101000101111001011101011100000₂
• Hexadecimal: 0x4E8BCBAE0
• Base-36: 9OP74DC

Squares and roots of 21084551904

• 21084551904 squared (21084551904²) is 444558328992470025216
• 21084551904 cubed (21084551904³) is 9373313161997242271830940811264
• The square root of 21084551904 is 145205.2061876571
• The cube root of 21084551904 is 2762.6219528453

Scales and comparisons

• 21,084,551,904 seconds is equal to 670 years, 22 weeks, 3 hours, 58 minutes, 24 seconds.
• To count from 1 to 21,084,551,904 would take you about one thousand, three hundred forty 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 21084551904 cubic inches would be around 230.2 feet tall.

Recreational maths with 21084551904

• 21084551904 backwards is 40915548012
• 21084551904 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21084551904's digits is 39
• More coming soon!