21312527292

Names of 21312527292

• Cardinal: 21312527292 can be written as Twenty-one billion, three hundred twelve million, five hundred twenty-seven thousand, two hundred ninety-two.

Scientific notation

• Scientific notation: 2.1312527292 × 10¹⁰

Factors of 21312527292

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4974942

Divisors of 21312527292

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 17 18 21 28 34 36 42 51 63 68 84 102 119 126 153 204 238 252 306 357 476 612 714 1071 1428 2142 4284 4974913 9949826 14924739 19899652 29849478 34824391 44774217 59698956 69648782 84573521 89548434 104473173 139297564 169147042 179096868 208946346 253720563 313419519 338294084 417892692 507441126 592014647 626839038 761161689 1014882252 1184029294 1253678076 1522323378 1776043941 2368058588 3044646756 3552087882 5328131823 7104175764 10656263646 21312527292
• Sum of all divisors σ(n): 65191273056
• Sum of proper divisors (its aliquot sum) s(n): 43878745764
• 21312527292 is an abundant number, because the sum of its proper divisors (43878745764) is greater than itself. Its abundance is 22566218472

Bases of 21312527292

• Binary: 10011110110010100110101101110111100₂
• Hexadecimal: 0x4F6535BBC
• Base-36: 9SGXFB0

Squares and roots of 21312527292

• 21312527292 squared (21312527292²) is 454223819572244853264
• 21312527292 cubed (21312527292³) is 9680657551309952200895535281088
• The square root of 21312527292 is 145988.1066799621
• The cube root of 21312527292 is 2772.5431726699

Scales and comparisons

• 21,312,527,292 seconds is equal to 677 years, 34 weeks, 6 days, 18 hours, 28 minutes, 12 seconds.
• To count from 1 to 21,312,527,292 would take you about one thousand, three hundred fifty-five 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 21312527292 cubic inches would be around 231 feet tall.

Recreational maths with 21312527292

• 21312527292 backwards is 29272521312
• 21312527292 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21312527292's digits is 36
• More coming soon!