13290815

Names of 13290815

• Cardinal: 13290815 can be written as Thirteen million, two hundred ninety thousand, eight hundred fifteen.

Scientific notation

• Scientific notation: 1.3290815 × 10⁷

Factors of 13290815

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 29961

Divisors of 13290815

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 89 445 29867 149335 2658163 13290815
• Sum of all divisors σ(n): 16128720
• Sum of proper divisors (its aliquot sum) s(n): 2837905
• 13290815 is a deficient number, because the sum of its proper divisors (2837905) is less than itself. Its deficiency is 10452910

Bases of 13290815

• Binary: 110010101100110100111111₂
• Hexadecimal: 0xCACD3F
• Base-36: 7WV9B

Squares and roots of 13290815

• 13290815 squared (13290815²) is 176645763364225
• 13290815 cubed (13290815³) is 2347766161407692093375
• The square root of 13290815 is 3645.6570052597
• The cube root of 13290815 is 236.8738966075

Scales and comparisons

• 13,290,815 seconds is equal to 21 weeks, 6 days, 19 hours, 53 minutes, 35 seconds.
• To count from 1 to 13,290,815 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 13290815 cubic inches would be around 19.7 feet tall.

Recreational maths with 13290815

• 13290815 backwards is 51809231
• The number of decimal digits it has is: 8
• The sum of 13290815's digits is 29
• More coming soon!