13220157

Names of 13220157

• Cardinal: 13220157 can be written as Thirteen million, two hundred twenty thousand, one hundred fifty-seven.

Scientific notation

• Scientific notation: 1.3220157 × 10⁷

Factors of 13220157

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 53179

Divisors of 13220157

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 83 249 53093 159279 4406719 13220157
• Sum of all divisors σ(n): 17839584
• Sum of proper divisors (its aliquot sum) s(n): 4619427
• 13220157 is a deficient number, because the sum of its proper divisors (4619427) is less than itself. Its deficiency is 8600730

Bases of 13220157

• Binary: 110010011011100100111101₂
• Hexadecimal: 0xC9B93D
• Base-36: 7VCQL

Squares and roots of 13220157

• 13220157 squared (13220157²) is 174772551104649
• 13220157 cubed (13220157³) is 2310520564893983209893
• The square root of 13220157 is 3635.9533825395
• The cube root of 13220157 is 236.4533860665

Scales and comparisons

• 13,220,157 seconds is equal to 21 weeks, 6 days, 15 minutes, 57 seconds.
• To count from 1 to 13,220,157 would take you about thirty-two 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 13220157 cubic inches would be around 19.7 feet tall.

Recreational maths with 13220157

• 13220157 backwards is 75102231
• The number of decimal digits it has is: 8
• The sum of 13220157's digits is 21
• More coming soon!