21642820441389

Names of 21642820441389

• Cardinal: 21642820441389 can be written as Twenty-one trillion, six hundred forty-two billion, eight hundred twenty million, four hundred forty-one thousand, three hundred eighty-nine.

Scientific notation

• Scientific notation: 2.1642820441389 × 10¹³

Factors of 21642820441389

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 5032907

Divisors of 21642820441389

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 7 9 21 63 67 201 469 603 1019 1407 3057 4221 7133 9171 21399 64197 68273 204819 477911 614457 1433733 4301199 5031811 15095433 35222677 45286299 105668031 317004093 337131337 1011394011 2359919359 3034182033 5127415409 7079758077 15382246227 21239274231 35891907863 46146738681 107675723589 323027170767 343536832403 1030610497209 2404757826821 3091831491627 7214273480463 21642820441389
• Sum of all divisors σ(n): 36296673953280
• Sum of proper divisors (its aliquot sum) s(n): 14653853511891
• 21642820441389 is a deficient number, because the sum of its proper divisors (14653853511891) is less than itself. Its deficiency is 6988966929498

Bases of 21642820441389

• Binary: 100111010111100011100100111111101010100101101₂
• Hexadecimal: 0x13AF1C9FD52D
• Base-36: 7O6KOHMP9

Squares and roots of 21642820441389

• 21642820441389 squared (21642820441389²) is 468411676658205548784249321
• 21642820441389 cubed (21642820441389³) is 10137749810563505763827415861856243546869
• The square root of 21642820441389 is 4652184.4805842555
• The cube root of 21642820441389 is 27867.9240838979

Scales and comparisons

• 21,642,820,441,389 seconds is equal to 688,174 years, 38 weeks, 4 days, 23 hours, 3 minutes, 9 seconds.
• To count from 1 to 21,642,820,441,389 would take you about one million, seven hundred twenty thousand, four 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 21642820441389 cubic inches would be around 2322.3 feet tall.

Recreational maths with 21642820441389

• 21642820441389 backwards is 98314402824612
• The number of decimal digits it has is: 14
• The sum of 21642820441389's digits is 54
• More coming soon!