21366536828

Names of 21366536828

• Cardinal: 21366536828 can be written as Twenty-one billion, three hundred sixty-six million, five hundred thirty-six thousand, eight hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1366536828 × 10¹⁰

Factors of 21366536828

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 110

Divisors of 21366536828

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 7 13 14 26 28 29 49 52 58 59 91 98 116 118 169 182 196 203 236 338 364 377 406 413 637 676 754 767 812 826 841 1183 1274 1421 1508 1534 1652 1682 1711 2197 2366 2548 2639 2842 2891 3068 3364 3422 4394 4732 4901 5278 5369 5684 5782 5887 6844 8281 8788 9802 9971 10556 10738 10933 11564 11774 11977 15379 16562 18473 19604 19942 21476 21866 22243 23548 23954 30758 33124 34307 36946 37583 39884 41209 43732 44486 47908 49619 61516 63713 68614 69797 73892 75166 76531 82418 83839 88972 99238 107653 127426 129623 137228 139594 142129 150332 153062 155701 164836 167678 198476 215306 240149 254852 259246 279188 284258 289159 306124 311402 335356 347333 430612 445991 480298 488579 518492 535717 568516 578318 622804 645047 694666 891982 907361 960596 977158 994903 1071434 1089907 1156636 1290094 1389332 1783964 1814722 1847677 1954316 1989806 2024113 2142868 2179814 2431331 2580188 3121937 3629444 3695354 3759067 3979612 4048226 4359628 4515329 4862662 6243874 6351527 6964321 7390708 7518134 8096452 8385611 9030658 9725324 12487748 12703054 12933739 13928642 14168791 15036268 16771222 18061316 25406108 25867478 26313469 27857284 28337582 31607303 33542444 51734956 52626938 56675164 58699277 63214606 90536173 105253876 109012943 117398554 126429212 181072346 184194283 218025886 234797108 362144692 368388566 410894939 436051772 736777132 763090601 821789878 1526181202 1643579756 3052362404 5341634207 10683268414 21366536828
• Sum of all divisors σ(n): 49627141200
• Sum of proper divisors (its aliquot sum) s(n): 28260604372
• 21366536828 is an abundant number, because the sum of its proper divisors (28260604372) is greater than itself. Its abundance is 6894067544

Bases of 21366536828

• Binary: 10011111001100010110111101001111100₂
• Hexadecimal: 0x4F98B7A7C
• Base-36: 9TD31BW

Squares and roots of 21366536828

• 21366536828 squared (21366536828²) is 456528896022280301584
• 21366536828 cubed (21366536828³) is 9754441469906234772333482735552
• The square root of 21366536828 is 146172.9688690765
• The cube root of 21366536828 is 2774.8832276377

Scales and comparisons

• 21,366,536,828 seconds is equal to 679 years, 20 weeks, 1 day, 21 hours, 7 minutes, 8 seconds.
• To count from 1 to 21,366,536,828 would take you about one thousand, three hundred fifty-eight 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 21366536828 cubic inches would be around 231.2 feet tall.

Recreational maths with 21366536828

• 21366536828 backwards is 82863566312
• The number of decimal digits it has is: 11
• The sum of 21366536828's digits is 50
• More coming soon!