21025440870

Names of 21025440870

• Cardinal: 21025440870 can be written as Twenty-one billion, twenty-five million, four hundred forty thousand, eight hundred seventy.

Scientific notation

• Scientific notation: 2.102544087 × 10¹⁰

Factors of 21025440870

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 201539

Divisors of 21025440870

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 71 98 105 142 147 210 213 245 294 355 426 490 497 710 735 994 1065 1470 1491 2130 2485 2982 3479 4970 6958 7455 10437 14910 17395 20874 34790 52185 104370 201451 402902 604353 1007255 1208706 1410157 2014510 2820314 3021765 4230471 6043530 7050785 8460942 9871099 14101570 14303021 19742198 21152355 28606042 29613297 42304710 42909063 49355495 59226594 71515105 85818126 98710990 100121147 143030210 148066485 200242294 214545315 296132970 300363441 429090630 500605735 600726882 700848029 1001211470 1401696058 1501817205 2102544087 3003634410 3504240145 4205088174 7008480290 10512720435 21025440870
• Sum of all divisors σ(n): 59526648576
• Sum of proper divisors (its aliquot sum) s(n): 38501207706
• 21025440870 is an abundant number, because the sum of its proper divisors (38501207706) is greater than itself. Its abundance is 17475766836

Bases of 21025440870

• Binary: 10011100101001101101100010001100110₂
• Hexadecimal: 0x4E536C466
• Base-36: 9NQ0606

Squares and roots of 21025440870

• 21025440870 squared (21025440870²) is 442069163777866356900
• 21025440870 cubed (21025440870³) is 9294699063461874901763266503000
• The square root of 21025440870 is 145001.5202334099
• The cube root of 21025440870 is 2760.0378447341

Scales and comparisons

• 21,025,440,870 seconds is equal to 668 years, 28 weeks, 2 days, 14 minutes, 30 seconds.
• To count from 1 to 21,025,440,870 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 21025440870 cubic inches would be around 230 feet tall.

Recreational maths with 21025440870

• 21025440870 backwards is 07804452012
• The number of decimal digits it has is: 11
• The sum of 21025440870's digits is 33
• More coming soon!