21029084828

Names of 21029084828

• Cardinal: 21029084828 can be written as Twenty-one billion, twenty-nine million, eighty-four thousand, eight hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1029084828 × 10¹⁰

Factors of 21029084828

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1885

Divisors of 21029084828

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 23 37 41 46 74 82 89 92 148 164 178 356 851 943 1517 1693 1702 1886 2047 3034 3293 3386 3404 3649 3772 4094 6068 6586 6772 7298 8188 13172 14596 34891 38939 62641 69413 69782 75739 77878 83927 125282 135013 138826 139564 150677 151478 155756 167854 250564 270026 277652 301354 302956 335708 540052 602708 1440743 1596499 2568281 2881486 3105299 3192998 3465571 5136562 5575049 5762972 6177757 6210598 6385996 6931142 10273124 11150098 12355514 12421196 13862284 22300196 24711028 59070463 118140926 128226127 142088411 228577009 236281852 256452254 284176822 457154018 512904508 568353644 914308036 5257271207 10514542414 21029084828
• Sum of all divisors σ(n): 40878794880
• Sum of proper divisors (its aliquot sum) s(n): 19849710052
• 21029084828 is a deficient number, because the sum of its proper divisors (19849710052) is less than itself. Its deficiency is 1179374776

Bases of 21029084828

• Binary: 10011100101011011100101111010011100₂
• Hexadecimal: 0x4E56E5E9C
• Base-36: 9NS69P8

Squares and roots of 21029084828

• 21029084828 squared (21029084828²) is 442222408703219789584
• 21029084828 cubed (21029084828³) is 9299532545462494431890246831552
• The square root of 21029084828 is 145014.0849297061
• The cube root of 21029084828 is 2760.1972846097

Scales and comparisons

• 21,029,084,828 seconds is equal to 668 years, 34 weeks, 2 days, 4 hours, 27 minutes, 8 seconds.
• To count from 1 to 21,029,084,828 would take you about one thousand, three hundred thirty-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 21029084828 cubic inches would be around 230 feet tall.

Recreational maths with 21029084828

• 21029084828 backwards is 82848092012
• The number of decimal digits it has is: 11
• The sum of 21029084828's digits is 44
• More coming soon!