20942209

Names of 20942209

• Cardinal: 20942209 can be written as Twenty million, nine hundred forty-two thousand, two hundred nine.

Scientific notation

• Scientific notation: 2.0942209 × 10⁷

Factors of 20942209

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 20942209

Divisors of 20942209

• Number of divisors d(n): 2
• Complete list of divisors:
  1 20942209
• Sum of all divisors σ(n): 20942210
• Sum of proper divisors (its aliquot sum) s(n): 1
• 20942209 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 20942208

Bases of 20942209

• Binary: 1001111111000110110000001₂
• Hexadecimal: 0x13F8D81
• Base-36: CGV41

Squares and roots of 20942209

• 20942209 squared (20942209²) is 438576117799681
• 20942209 cubed (20942209³) is 9184752721369539635329
• The square root of 20942209 is 4576.2658358099
• The cube root of 20942209 is 275.6391041949

Scales and comparisons

• 20,942,209 seconds is equal to 34 weeks, 4 days, 9 hours, 16 minutes, 49 seconds.
• To count from 1 to 20,942,209 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 20942209 cubic inches would be around 23 feet tall.

Recreational maths with 20942209

• 20942209 backwards is 90224902
• The number of decimal digits it has is: 8
• The sum of 20942209's digits is 28
• More coming soon!