20731470

Names of 20731470

• Cardinal: 20731470 can be written as Twenty million, seven hundred thirty-one thousand, four hundred seventy.

Scientific notation

• Scientific notation: 2.073147 × 10⁷

Factors of 20731470

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1049

Divisors of 20731470

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 19 30 37 38 57 74 95 111 114 185 190 222 285 370 555 570 703 983 1110 1406 1966 2109 2949 3515 4218 4915 5898 7030 9830 10545 14745 18677 21090 29490 36371 37354 56031 72742 93385 109113 112062 181855 186770 218226 280155 363710 545565 560310 691049 1091130 1382098 2073147 3455245 4146294 6910490 10365735 20731470
• Sum of all divisors σ(n): 53844480
• Sum of proper divisors (its aliquot sum) s(n): 33113010
• 20731470 is an abundant number, because the sum of its proper divisors (33113010) is greater than itself. Its abundance is 12381540

Bases of 20731470

• Binary: 1001111000101011001001110₂
• Hexadecimal: 0x13C564E
• Base-36: CCCI6

Squares and roots of 20731470

• 20731470 squared (20731470²) is 429793848360900
• 20731470 cubed (20731470³) is 8910258273478547523000
• The square root of 20731470 is 4553.1824035503
• The cube root of 20731470 is 274.7114107545

Scales and comparisons

• 20,731,470 seconds is equal to 34 weeks, 1 day, 22 hours, 44 minutes, 30 seconds.
• To count from 1 to 20,731,470 would take you about fifty-one weeks!

  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 20731470 cubic inches would be around 22.9 feet tall.

Recreational maths with 20731470

• 20731470 backwards is 07413702
• The number of decimal digits it has is: 8
• The sum of 20731470's digits is 24
• More coming soon!