21331450231

Names of 21331450231

• Cardinal: 21331450231 can be written as Twenty-one billion, three hundred thirty-one million, four hundred fifty thousand, two hundred thirty-one.

Scientific notation

• Scientific notation: 2.1331450231 × 10¹⁰

Factors of 21331450231

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 164

Divisors of 21331450231

• Number of divisors d(n): 72
• Complete list of divisors:
  1 7 13 49 71 73 91 169 343 497 511 637 923 949 1183 3479 3577 4459 5041 5183 6461 6643 8281 11999 12337 24353 25039 35287 36281 45227 46501 57967 65533 67379 83993 86359 247009 253967 316589 325507 367993 458731 471653 587951 604513 851929 875927 1729063 1777769 2575951 3211117 3301571 4115657 4231591 4783909 5963503 6131489 18031657 22477819 23110997 33487363 41744521 42920423 62190817 126221599 234411541 292211647 300442961 435335719 1640880787 3047350033 21331450231
• Sum of all divisors σ(n): 27696098400
• Sum of proper divisors (its aliquot sum) s(n): 6364648169
• 21331450231 is a deficient number, because the sum of its proper divisors (6364648169) is less than itself. Its deficiency is 14966802062

Bases of 21331450231

• Binary: 10011110111011101000001100101110111₂
• Hexadecimal: 0x4F7741977
• Base-36: 9SS70C7

Squares and roots of 21331450231

• 21331450231 squared (21331450231²) is 455030768957629953361
• 21331450231 cubed (21331450231³) is 9706466201593343097835022676391
• The square root of 21331450231 is 146052.9021656195
• The cube root of 21331450231 is 2773.3634906117

Scales and comparisons

• 21,331,450,231 seconds is equal to 678 years, 14 weeks, 1 day, 18 hours, 50 minutes, 31 seconds.
• To count from 1 to 21,331,450,231 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 21331450231 cubic inches would be around 231.1 feet tall.

Recreational maths with 21331450231

• 21331450231 backwards is 13205413312
• The number of decimal digits it has is: 11
• The sum of 21331450231's digits is 25
• More coming soon!