21070272

Names of 21070272

• Cardinal: 21070272 can be written as Twenty-one million, seventy thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 2.1070272 × 10⁷

Factors of 21070272

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 109746

Divisors of 21070272

• Number of divisors d(n): 28
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 192 109741 219482 329223 438964 658446 877928 1316892 1755856 2633784 3511712 5267568 7023424 10535136 21070272
• Sum of all divisors σ(n): 55748936
• Sum of proper divisors (its aliquot sum) s(n): 34678664
• 21070272 is an abundant number, because the sum of its proper divisors (34678664) is greater than itself. Its abundance is 13608392

Bases of 21070272

• Binary: 1010000011000000111000000₂
• Hexadecimal: 0x14181C0
• Base-36: CJLXC

Squares and roots of 21070272

• 21070272 squared (21070272²) is 443956362153984
• 21070272 cubed (21070272³) is 9354281306714948763648
• The square root of 21070272 is 4590.2365952095
• The cube root of 21070272 is 276.1998133001

Scales and comparisons

• 21,070,272 seconds is equal to 34 weeks, 5 days, 20 hours, 51 minutes, 12 seconds.
• To count from 1 to 21,070,272 would take you about nineteen 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 21070272 cubic inches would be around 23 feet tall.

Recreational maths with 21070272

• 21070272 backwards is 27207012
• The number of decimal digits it has is: 8
• The sum of 21070272's digits is 21
• More coming soon!