20447120

Names of 20447120

• Cardinal: 20447120 can be written as Twenty million, four hundred forty-seven thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.044712 × 10⁷

Factors of 20447120

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 255596

Divisors of 20447120

• Number of divisors d(n): 20
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 255589 511178 1022356 1277945 2044712 2555890 4089424 5111780 10223560 20447120
• Sum of all divisors σ(n): 47539740
• Sum of proper divisors (its aliquot sum) s(n): 27092620
• 20447120 is an abundant number, because the sum of its proper divisors (27092620) is greater than itself. Its abundance is 6645500

Bases of 20447120

• Binary: 1001101111111111110010000₂
• Hexadecimal: 0x137FF90
• Base-36: C693K

Squares and roots of 20447120

• 20447120 squared (20447120²) is 418084716294400
• 20447120 cubed (20447120³) is 8548628364237552128000
• The square root of 20447120 is 4521.8491792629
• The cube root of 20447120 is 273.4496563521

Scales and comparisons

• 20,447,120 seconds is equal to 33 weeks, 5 days, 15 hours, 45 minutes, 20 seconds.
• To count from 1 to 20,447,120 would take you about fifty 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 20447120 cubic inches would be around 22.8 feet tall.

Recreational maths with 20447120

• 20447120 backwards is 02174402
• 20447120 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20447120's digits is 20
• More coming soon!