21331591974

Names of 21331591974

• Cardinal: 21331591974 can be written as Twenty-one billion, three hundred thirty-one million, five hundred ninety-one thousand, nine hundred seventy-four.

Scientific notation

• Scientific notation: 2.1331591974 × 10¹⁰

Factors of 21331591974

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5130276

Divisors of 21331591974

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 27 33 42 54 63 66 77 99 126 154 189 198 231 297 378 462 594 693 1386 2079 4158 5130253 10260506 15390759 30781518 35911771 46172277 56432783 71823542 92344554 107735313 112865566 138516831 169298349 215470626 277033662 323205939 338596698 395029481 507895047 646411878 790058962 969617817 1015790094 1185088443 1523685141 1939235634 2370176886 3047370282 3555265329 7110530658 10665795987 21331591974
• Sum of all divisors σ(n): 59100526080
• Sum of proper divisors (its aliquot sum) s(n): 37768934106
• 21331591974 is an abundant number, because the sum of its proper divisors (37768934106) is greater than itself. Its abundance is 16437342132

Bases of 21331591974

• Binary: 10011110111011101100100001100100110₂
• Hexadecimal: 0x4F7764326
• Base-36: 9SSA1PI

Squares and roots of 21331591974

• 21331591974 squared (21331591974²) is 455036816145221216676
• 21331591974 cubed (21331591974³) is 9706659695157914524100276558424
• The square root of 21331591974 is 146053.3874102207
• The cube root of 21331591974 is 2773.3696334039

Scales and comparisons

• 21,331,591,974 seconds is equal to 678 years, 14 weeks, 3 days, 10 hours, 12 minutes, 54 seconds.
• To count from 1 to 21,331,591,974 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 21331591974 cubic inches would be around 231.1 feet tall.

Recreational maths with 21331591974

• 21331591974 backwards is 47919513312
• The number of decimal digits it has is: 11
• The sum of 21331591974's digits is 45
• More coming soon!