13931009

Names of 13931009

• Cardinal: 13931009 can be written as Thirteen million, nine hundred thirty-one thousand and nine.

Scientific notation

• Scientific notation: 1.3931009 × 10⁷

Factors of 13931009

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 2479

Divisors of 13931009

• Number of divisors d(n): 8
• Complete list of divisors:
  1 19 347 2113 6593 40147 733211 13931009
• Sum of all divisors σ(n): 14713440
• Sum of proper divisors (its aliquot sum) s(n): 782431
• 13931009 is a deficient number, because the sum of its proper divisors (782431) is less than itself. Its deficiency is 13148578

Bases of 13931009

• Binary: 110101001001001000000001₂
• Hexadecimal: 0xD49201
• Base-36: 8AL8H

Squares and roots of 13931009

• 13931009 squared (13931009²) is 194073011758081
• 13931009 cubed (13931009³) is 2703632873458932233729
• The square root of 13931009 is 3732.4266905059
• The cube root of 13931009 is 240.6176740109

Scales and comparisons

• 13,931,009 seconds is equal to 23 weeks, 5 hours, 43 minutes, 29 seconds.
• To count from 1 to 13,931,009 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 13931009 cubic inches would be around 20.1 feet tall.

Recreational maths with 13931009

• 13931009 backwards is 90013931
• The number of decimal digits it has is: 8
• The sum of 13931009's digits is 26
• More coming soon!