21349883737

Names of 21349883737

• Cardinal: 21349883737 can be written as Twenty-one billion, three hundred forty-nine million, eight hundred eighty-three thousand, seven hundred thirty-seven.

Scientific notation

• Scientific notation: 2.1349883737 × 10¹⁰

Factors of 21349883737

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 160

Divisors of 21349883737

• Number of divisors d(n): 72
• Complete list of divisors:
  1 7 13 31 49 91 109 169 217 343 403 637 763 1183 1417 1519 2821 3379 4459 5239 5341 8281 9919 10633 11881 18421 19747 23653 36673 37387 43927 57967 69433 83167 128947 138229 154453 165571 256711 307489 368311 486031 571051 582169 902629 1081171 1158997 1796977 2007889 2152423 2578177 3997357 4075183 4788043 6318403 7568197 14055223 15066961 18047239 27981499 33516301 52977379 62244559 98386561 126330673 195870493 234614107 435711913 688705927 1642298749 3049983391 21349883737
• Sum of all divisors σ(n): 28087718400
• Sum of proper divisors (its aliquot sum) s(n): 6737834663
• 21349883737 is a deficient number, because the sum of its proper divisors (6737834663) is less than itself. Its deficiency is 14612049074

Bases of 21349883737

• Binary: 10011111000100011010101111101011001₂
• Hexadecimal: 0x4F88D5F59
• Base-36: 9T363Q1

Squares and roots of 21349883737

• 21349883737 squared (21349883737²) is 455817535583417085169
• 21349883737 cubed (21349883737³) is 9731651389991815233537576996553
• The square root of 21349883737 is 146115.9941176871
• The cube root of 21349883737 is 2774.1621250721

Scales and comparisons

• 21,349,883,737 seconds is equal to 678 years, 44 weeks, 5 days, 3 hours, 15 minutes, 37 seconds.
• To count from 1 to 21,349,883,737 would take you about one thousand, three hundred fifty-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 21349883737 cubic inches would be around 231.2 feet tall.

Recreational maths with 21349883737

• 21349883737 backwards is 73738894312
• The number of decimal digits it has is: 11
• The sum of 21349883737's digits is 55
• More coming soon!