21679242

Names of 21679242

• Cardinal: 21679242 can be written as Twenty-one million, six hundred seventy-nine thousand, two hundred forty-two.

Scientific notation

• Scientific notation: 2.1679242 × 10⁷

Factors of 21679242

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 6838

Divisors of 21679242

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 13 26 39 41 78 82 123 246 533 1066 1599 3198 6779 13558 20337 40674 88127 176254 264381 277939 528762 555878 833817 1667634 3613207 7226414 10839621 21679242
• Sum of all divisors σ(n): 47839680
• Sum of proper divisors (its aliquot sum) s(n): 26160438
• 21679242 is an abundant number, because the sum of its proper divisors (26160438) is greater than itself. Its abundance is 4481196

Bases of 21679242

• Binary: 1010010101100110010001010₂
• Hexadecimal: 0x14ACC8A
• Base-36: CWNT6

Squares and roots of 21679242

• 21679242 squared (21679242²) is 469989533694564
• 21679242 cubed (21679242³) is 10189016838431607040488
• The square root of 21679242 is 4656.0972927981
• The cube root of 21679242 is 278.8354780857

Scales and comparisons

• 21,679,242 seconds is equal to 35 weeks, 5 days, 22 hours, 42 seconds.
• To count from 1 to 21,679,242 would take you about five days!

  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 21679242 cubic inches would be around 23.2 feet tall.

Recreational maths with 21679242

• 21679242 backwards is 24297612
• The number of decimal digits it has is: 8
• The sum of 21679242's digits is 33
• More coming soon!