21047022

Names of 21047022

• Cardinal: 21047022 can be written as Twenty-one million, forty-seven thousand and twenty-two.

Scientific notation

• Scientific notation: 2.1047022 × 10⁷

Factors of 21047022

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 144

Divisors of 21047022

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 18 19 38 41 57 79 82 114 123 158 171 237 246 342 361 369 474 711 722 738 779 1083 1422 1501 1558 2166 2337 3002 3239 3249 4503 4674 6478 6498 7011 9006 9717 13509 14022 14801 19434 27018 28519 29151 29602 44403 57038 58302 61541 85557 88806 123082 133209 171114 184623 256671 266418 369246 513342 553869 1107738 1169279 2338558 3507837 7015674 10523511 21047022
• Sum of all divisors σ(n): 49926240
• Sum of proper divisors (its aliquot sum) s(n): 28879218
• 21047022 is an abundant number, because the sum of its proper divisors (28879218) is greater than itself. Its abundance is 7832196

Bases of 21047022

• Binary: 1010000010010011011101110₂
• Hexadecimal: 0x14126EE
• Base-36: CJ3ZI

Squares and roots of 21047022

• 21047022 squared (21047022²) is 442977135068484
• 21047022 cubed (21047022³) is 9323349507283354254648
• The square root of 21047022 is 4587.7033469917
• The cube root of 21047022 is 276.0981849791

Scales and comparisons

• 21,047,022 seconds is equal to 34 weeks, 5 days, 14 hours, 23 minutes, 42 seconds.
• To count from 1 to 21,047,022 would take you about nine 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 21047022 cubic inches would be around 23 feet tall.

Recreational maths with 21047022

• 21047022 backwards is 22074012
• 21047022 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21047022's digits is 18
• More coming soon!