21337139637

Names of 21337139637

• Cardinal: 21337139637 can be written as Twenty-one billion, three hundred thirty-seven million, one hundred thirty-nine thousand, six hundred thirty-seven.

Scientific notation

• Scientific notation: 2.1337139637 × 10¹⁰

Factors of 21337139637

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 62

Divisors of 21337139637

• Number of divisors d(n): 180
• Complete list of divisors:
  1 3 9 11 17 27 31 33 51 81 93 99 121 153 187 243 279 289 297 341 363 459 527 561 729 837 867 891 1023 1089 1377 1581 1683 2057 2187 2511 2601 2673 3069 3179 3267 3751 4131 4743 5049 5797 6171 6561 7533 7803 8019 8959 9207 9537 9801 11253 12393 14229 15147 17391 18513 19683 22599 23409 24057 26877 27621 28611 29403 33759 34969 37179 42687 45441 52173 55539 63767 67797 70227 72171 80631 82863 85833 88209 98549 101277 104907 111537 128061 136323 156519 166617 191301 203391 210681 216513 241893 248589 257499 264627 295647 303831 314721 334611 384183 408969 469557 499851 573903 610173 632043 725679 745767 772497 793881 886941 911493 944163 1084039 1152549 1226907 1408671 1499553 1721709 1896129 2177037 2237301 2317491 2381643 2660823 2734479 2832489 3252117 3457647 3680721 4226013 4498659 5165127 5688387 6531111 6711903 6952473 7982469 8203437 8497467 9756351 10372941 12678039 13495977 15495381 19593333 20857419 23947407 24610311 25492401 29269053 38034117 40487931 46486143 58779999 62572257 71842221 73830933 76477203 87807159 114102351 139458429 176339997 215526663 229431609 263421477 418375287 646579989 688294827 790264431 1255125861 1939739967 2370793293 7112379879 21337139637
• Sum of all divisors σ(n): 38575822208
• Sum of proper divisors (its aliquot sum) s(n): 17238682571
• 21337139637 is a deficient number, because the sum of its proper divisors (17238682571) is less than itself. Its deficiency is 4098457066

Bases of 21337139637

• Binary: 10011110111110010101110100110110101₂
• Hexadecimal: 0x4F7CAE9B5
• Base-36: 9SVKYB9

Squares and roots of 21337139637

• 21337139637 squared (21337139637²) is 455273527888836491769
• 21337139637 cubed (21337139637³) is 9714234837593718038336354147853
• The square root of 21337139637 is 146072.3780767603
• The cube root of 21337139637 is 2773.6100340661

Scales and comparisons

• 21,337,139,637 seconds is equal to 678 years, 23 weeks, 4 days, 15 hours, 13 minutes, 57 seconds.
• To count from 1 to 21,337,139,637 would take you about one thousand, three hundred fifty-six 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 21337139637 cubic inches would be around 231.1 feet tall.

Recreational maths with 21337139637

• 21337139637 backwards is 73693173312
• The number of decimal digits it has is: 11
• The sum of 21337139637's digits is 45
• More coming soon!