21204921010

Names of 21204921010

• Cardinal: 21204921010 can be written as Twenty-one billion, two hundred four million, nine hundred twenty-one thousand and ten.

Scientific notation

• Scientific notation: 2.120492101 × 10¹⁰

Factors of 21204921010

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1602

Divisors of 21204921010

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 5 7 10 13 14 26 31 35 49 62 65 70 73 91 98 130 146 155 182 217 245 310 365 403 434 455 490 511 637 730 806 910 949 1022 1085 1274 1471 1519 1898 2015 2170 2263 2555 2821 2942 3038 3185 3577 4030 4526 4745 5110 5642 6370 6643 7154 7355 7595 9490 10297 11315 13286 14105 14710 15190 15841 17885 19123 19747 20594 22630 28210 29419 31682 33215 35770 38246 39494 45601 46501 51485 58838 66430 72079 79205 91202 93002 95615 98735 102970 107383 110887 133861 144158 147095 158410 191230 197470 205933 214766 221774 228005 232505 267722 294190 319207 360395 411866 456010 465010 536915 554435 592813 638414 669305 720790 751681 937027 1029665 1073830 1108870 1185626 1338610 1395979 1441531 1503362 1596035 1874054 2059330 2234449 2791958 2883062 2964065 3192070 3328873 3758405 4149691 4468898 4685135 5261767 5928130 6657746 6979895 7207655 7516810 8299382 9370270 9771853 10523534 11172245 13959790 14415310 16644365 19543706 20748455 22344490 23302111 26308835 29047837 33288730 41496910 43275349 46604222 48859265 52617670 58095674 68402971 86550698 97718530 116510555 136805942 145239185 163114777 216376745 233021110 290478370 302927443 326229554 342014855 432753490 605854886 684029710 815573885 1514637215 1631147770 2120492101 3029274430 4240984202 10602460505 21204921010
• Sum of all divisors σ(n): 50068537344
• Sum of proper divisors (its aliquot sum) s(n): 28863616334
• 21204921010 is an abundant number, because the sum of its proper divisors (28863616334) is greater than itself. Its abundance is 7658695324

Bases of 21204921010

• Binary: 10011101111111010010110101010110010₂
• Hexadecimal: 0x4EFE96AB2
• Base-36: 9QOV1RM

Squares and roots of 21204921010

• 21204921010 squared (21204921010²) is 449648675040339420100
• 21204921010 cubed (21204921010³) is 9534764636481555966809706301000
• The square root of 21204921010 is 145619.0956227923
• The cube root of 21204921010 is 2767.8691362873

Scales and comparisons

• 21,204,921,010 seconds is equal to 674 years, 13 weeks, 7 hours, 50 minutes, 10 seconds.
• To count from 1 to 21,204,921,010 would take you about one thousand, three hundred forty-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 21204921010 cubic inches would be around 230.7 feet tall.

Recreational maths with 21204921010

• 21204921010 backwards is 01012940212
• The number of decimal digits it has is: 11
• The sum of 21204921010's digits is 22
• More coming soon!