21037030

Names of 21037030

• Cardinal: 21037030 can be written as Twenty-one million, thirty-seven thousand and thirty.

Scientific notation

• Scientific notation: 2.103703 × 10⁷

Factors of 21037030

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1168

Divisors of 21037030

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 7 10 14 35 70 397 757 794 1514 1985 2779 3785 3970 5299 5558 7570 10598 13895 26495 27790 52990 300529 601058 1502645 2103703 3005290 4207406 10518515 21037030
• Sum of all divisors σ(n): 43442496
• Sum of proper divisors (its aliquot sum) s(n): 22405466
• 21037030 is an abundant number, because the sum of its proper divisors (22405466) is greater than itself. Its abundance is 1368436

Bases of 21037030

• Binary: 1010000001111111111100110₂
• Hexadecimal: 0x140FFE6
• Base-36: CIW9Y

Squares and roots of 21037030

• 21037030 squared (21037030²) is 442556631220900
• 21037030 cubed (21037030³) is 9310077127693009927000
• The square root of 21037030 is 4586.6142196613
• The cube root of 21037030 is 276.0544858475

Scales and comparisons

• 21,037,030 seconds is equal to 34 weeks, 5 days, 11 hours, 37 minutes, 10 seconds.
• To count from 1 to 21,037,030 would take you about five 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 21037030 cubic inches would be around 23 feet tall.

Recreational maths with 21037030

• 21037030 backwards is 03073012
• The number of decimal digits it has is: 8
• The sum of 21037030's digits is 16
• More coming soon!