21000122

Names of 21000122

• Cardinal: 21000122 can be written as Twenty-one million, one hundred twenty-two.

Scientific notation

• Scientific notation: 2.1000122 × 10⁷

Factors of 21000122

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 854

Divisors of 21000122

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 11 13 22 26 101 143 202 286 727 1111 1313 1454 2222 2626 7997 9451 14443 15994 18902 28886 73427 103961 146854 207922 807697 954551 1615394 1909102 10500061 21000122
• Sum of all divisors σ(n): 37425024
• Sum of proper divisors (its aliquot sum) s(n): 16424902
• 21000122 is a deficient number, because the sum of its proper divisors (16424902) is less than itself. Its deficiency is 4575220

Bases of 21000122

• Binary: 1010000000110111110111010₂
• Hexadecimal: 0x1406FBA
• Base-36: CI3SQ

Squares and roots of 21000122

• 21000122 squared (21000122²) is 441005124014884
• 21000122 cubed (21000122³) is 9261161406937693815848
• The square root of 21000122 is 4582.5890062279
• The cube root of 21000122 is 275.8929519049

Scales and comparisons

• 21,000,122 seconds is equal to 34 weeks, 5 days, 1 hour, 22 minutes, 2 seconds.
• To count from 1 to 21,000,122 would take you about fourteen hours!

  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 21000122 cubic inches would be around 23 feet tall.

Recreational maths with 21000122

• 21000122 backwards is 22100012
• The number of decimal digits it has is: 8
• The sum of 21000122's digits is 8
• More coming soon!