21120882912

Names of 21120882912

• Cardinal: 21120882912 can be written as Twenty-one billion, one hundred twenty million, eight hundred eighty-two thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 2.1120882912 × 10¹⁰

Factors of 21120882912

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 672925

Divisors of 21120882912

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 109 144 218 288 327 436 654 872 981 1308 1744 1962 2616 3488 3924 5232 7848 10464 15696 31392 672811 1345622 2018433 2691244 4036866 5382488 6055299 8073732 10764976 12110598 16147464 21529952 24221196 32294928 48442392 64589856 73336399 96884784 146672798 193769568 220009197 293345596 440018394 586691192 660027591 880036788 1173382384 1320055182 1760073576 2346764768 2640110364 3520147152 5280220728 7040294304 10560441456 21120882912
• Sum of all divisors σ(n): 60613633080
• Sum of proper divisors (its aliquot sum) s(n): 39492750168
• 21120882912 is an abundant number, because the sum of its proper divisors (39492750168) is greater than itself. Its abundance is 18371867256

Bases of 21120882912

• Binary: 10011101010111001110001100011100000₂
• Hexadecimal: 0x4EAE718E0
• Base-36: 9PATTK0

Squares and roots of 21120882912

• 21120882912 squared (21120882912²) is 446091694982413599744
• 21120882912 cubed (21120882912³) is 9421850457739175539349457174528
• The square root of 21120882912 is 145330.2546340575
• The cube root of 21120882912 is 2764.2078097481

Scales and comparisons

• 21,120,882,912 seconds is equal to 671 years, 30 weeks, 15 hours, 55 minutes, 12 seconds.
• To count from 1 to 21,120,882,912 would take you about one thousand, three hundred forty-three 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 21120882912 cubic inches would be around 230.4 feet tall.

Recreational maths with 21120882912

• 21120882912 backwards is 21928802112
• 21120882912 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21120882912's digits is 36
• More coming soon!