13812690

Names of 13812690

• Cardinal: 13812690 can be written as Thirteen million, eight hundred twelve thousand, six hundred ninety.

Scientific notation

• Scientific notation: 1.381269 × 10⁷

Factors of 13812690

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1794

Divisors of 13812690

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 5 6 10 15 30 313 626 939 1471 1565 1878 2942 3130 4413 4695 7355 8826 9390 14710 22065 44130 460423 920846 1381269 2302115 2762538 4604230 6906345 13812690
• Sum of all divisors σ(n): 33278976
• Sum of proper divisors (its aliquot sum) s(n): 19466286
• 13812690 is an abundant number, because the sum of its proper divisors (19466286) is greater than itself. Its abundance is 5653596

Bases of 13812690

• Binary: 110100101100001111010010₂
• Hexadecimal: 0xD2C3D2
• Base-36: 881XU

Squares and roots of 13812690

• 13812690 squared (13812690²) is 190790405036100
• 13812690 cubed (13812690³) is 2635328719738088109000
• The square root of 13812690 is 3716.5427483077
• The cube root of 13812690 is 239.9345307533

Scales and comparisons

• 13,812,690 seconds is equal to 22 weeks, 5 days, 20 hours, 51 minutes, 30 seconds.
• To count from 1 to 13,812,690 would take you about thirty-four 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 13812690 cubic inches would be around 20 feet tall.

Recreational maths with 13812690

• 13812690 backwards is 09621831
• 13812690 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13812690's digits is 30
• More coming soon!