13149915

Names of 13149915

• Cardinal: 13149915 can be written as Thirteen million, one hundred forty-nine thousand, nine hundred fifteen.

Scientific notation

• Scientific notation: 1.3149915 × 10⁷

Factors of 13149915

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 876669

Divisors of 13149915

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 876661 2629983 4383305 13149915
• Sum of all divisors σ(n): 21039888
• Sum of proper divisors (its aliquot sum) s(n): 7889973
• 13149915 is a deficient number, because the sum of its proper divisors (7889973) is less than itself. Its deficiency is 5259942

Bases of 13149915

• Binary: 110010001010011011011011₂
• Hexadecimal: 0xC8A6DB
• Base-36: 7TUJF

Squares and roots of 13149915

• 13149915 squared (13149915²) is 172920264507225
• 13149915 cubed (13149915³) is 2273886780047525635875
• The square root of 13149915 is 3626.2811529167
• The cube root of 13149915 is 236.0338635215

Scales and comparisons

• 13,149,915 seconds is equal to 21 weeks, 5 days, 4 hours, 45 minutes, 15 seconds.
• To count from 1 to 13,149,915 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 13149915 cubic inches would be around 19.7 feet tall.

Recreational maths with 13149915

• 13149915 backwards is 51994131
• The number of decimal digits it has is: 8
• The sum of 13149915's digits is 33
• More coming soon!