21321794496

Names of 21321794496

• Cardinal: 21321794496 can be written as Twenty-one billion, three hundred twenty-one million, seven hundred ninety-four thousand, four hundred ninety-six.

Scientific notation

• Scientific notation: 2.1321794496 × 10¹⁰

Factors of 21321794496

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 240319

Divisors of 21321794496

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 192 463 926 1389 1852 2778 3704 5556 7408 11112 14816 22224 29632 44448 88896 239851 479702 719553 959404 1439106 1918808 2878212 3837616 5756424 7675232 11512848 15350464 23025696 46051392 111051013 222102026 333153039 444204052 666306078 888408104 1332612156 1776816208 2665224312 3553632416 5330448624 7107264832 10660897248 21321794496
• Sum of all divisors σ(n): 56535994624
• Sum of proper divisors (its aliquot sum) s(n): 35214200128
• 21321794496 is an abundant number, because the sum of its proper divisors (35214200128) is greater than itself. Its abundance is 13892405632

Bases of 21321794496

• Binary: 10011110110111000001100001111000000₂
• Hexadecimal: 0x4F6E0C3C0
• Base-36: 9SMG1XC

Squares and roots of 21321794496

• 21321794496 squared (21321794496²) is 454618920529655894016
• 21321794496 cubed (21321794496³) is 9693291197526678445804308135936
• The square root of 21321794496 is 146019.8428159679
• The cube root of 21321794496 is 2772.9449707869

Scales and comparisons

• 21,321,794,496 seconds is equal to 677 years, 50 weeks, 2 days, 41 minutes, 36 seconds.
• To count from 1 to 21,321,794,496 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 21321794496 cubic inches would be around 231.1 feet tall.

Recreational maths with 21321794496

• 21321794496 backwards is 69449712312
• 21321794496 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21321794496's digits is 48
• More coming soon!