21498661008

Names of 21498661008

• Cardinal: 21498661008 can be written as Twenty-one billion, four hundred ninety-eight million, six hundred sixty-one thousand and eight.

Scientific notation

• Scientific notation: 2.1498661008 × 10¹⁰

Factors of 21498661008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 725

Divisors of 21498661008

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 81 88 99 108 132 144 162 176 198 216 243 264 297 324 396 432 486 528 594 648 709 792 891 972 1188 1296 1418 1584 1782 1944 2127 2376 2673 2836 3564 3888 4254 4752 5346 5672 6381 7128 7799 8508 10692 11344 12762 14256 15598 17016 19143 21384 23397 25524 31196 34032 38286 42768 46794 51048 57429 62392 70191 76572 93588 102096 114858 124784 140382 153144 172287 187176 210573 229716 280764 306288 344574 374352 421146 459432 502681 561528 631719 689148 842292 918864 1005362 1123056 1263438 1378296 1508043 1684584 1895157 2010724 2526876 2756592 3016086 3369168 3790314 4021448 4524129 5053752 5529491 6032172 7580628 8042896 9048258 10107504 11058982 12064344 13572387 15161256 16588473 18096516 22117964 24128688 27144774 30322512 33176946 36193032 40717161 44235928 49765419 54289548 66353892 72386064 81434322 88471856 99530838 108579096 122151483 132707784 149296257 162868644 199061676 217158192 244302966 265415568 298592514 325737288 398123352 447888771 488605932 597185028 651474576 796246704 895777542 977211864 1194370056 1343666313 1791555084 1954423728 2388740112 2687332626 3583110168 5374665252 7166220336 10749330504 21498661008
• Sum of all divisors σ(n): 68163168528
• Sum of proper divisors (its aliquot sum) s(n): 46664507520
• 21498661008 is an abundant number, because the sum of its proper divisors (46664507520) is greater than itself. Its abundance is 25165846512

Bases of 21498661008

• Binary: 10100000001011010111000100010010000₂
• Hexadecimal: 0x5016B8890
• Base-36: 9VJQX00

Squares and roots of 21498661008

• 21498661008 squared (21498661008²) is 462192425136899576064
• 21498661008 cubed (21498661008³) is 9936518268483621977938846912512
• The square root of 21498661008 is 146624.2169902367
• The cube root of 21498661008 is 2780.5911569985

Scales and comparisons

• 21,498,661,008 seconds is equal to 683 years, 30 weeks, 5 days, 2 hours, 16 minutes, 48 seconds.
• To count from 1 to 21,498,661,008 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 21498661008 cubic inches would be around 231.7 feet tall.

Recreational maths with 21498661008

• 21498661008 backwards is 80016689412
• The number of decimal digits it has is: 11
• The sum of 21498661008's digits is 45
• More coming soon!