21021699048

Names of 21021699048

• Cardinal: 21021699048 can be written as Twenty-one billion, twenty-one million, six hundred ninety-nine thousand and forty-eight.

Scientific notation

• Scientific notation: 2.1021699048 × 10¹⁰

Factors of 21021699048

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 50374

Divisors of 21021699048

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 2621 5242 7863 10484 15726 18347 20968 31452 36694 47741 55041 62904 73388 95482 110082 143223 146776 190964 220164 286446 334187 381928 440328 572892 668374 1002561 1145784 1336748 2005122 2673496 4010244 8020488 125129161 250258322 375387483 500516644 750774966 875904127 1001033288 1501549932 1751808254 2627712381 3003099864 3503616508 5255424762 7007233016 10510849524 21021699048
• Sum of all divisors σ(n): 60086171520
• Sum of proper divisors (its aliquot sum) s(n): 39064472472
• 21021699048 is an abundant number, because the sum of its proper divisors (39064472472) is greater than itself. Its abundance is 18042773424

Bases of 21021699048

• Binary: 10011100100111111011010101111101000₂
• Hexadecimal: 0x4E4FDABE8
• Base-36: 9NNRYSO

Squares and roots of 21021699048

• 21021699048 squared (21021699048²) is 441911830864684106304
• 21021699048 cubed (21021699048³) is 9289737514188066894311527598592
• The square root of 21021699048 is 144988.6169600911
• The cube root of 21021699048 is 2759.8741036881

Scales and comparisons

• 21,021,699,048 seconds is equal to 668 years, 22 weeks, 16 hours, 50 minutes, 48 seconds.
• To count from 1 to 21,021,699,048 would take you about one thousand, three hundred thirty-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 21021699048 cubic inches would be around 230 feet tall.

Recreational maths with 21021699048

• 21021699048 backwards is 84099612012
• 21021699048 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21021699048's digits is 42
• More coming soon!