31399081

Names of 31399081

• Cardinal: 31399081 can be written as Thirty-one million, three hundred ninety-nine thousand and eighty-one.

Scientific notation

• Scientific notation: 3.1399081 × 10⁷

Factors of 31399081

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 67023

Divisors of 31399081

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 67 469 66949 468643 4485583 31399081
• Sum of all divisors σ(n): 36420800
• Sum of proper divisors (its aliquot sum) s(n): 5021719
• 31399081 is a deficient number, because the sum of its proper divisors (5021719) is less than itself. Its deficiency is 26377362

Bases of 31399081

• Binary: 1110111110001110010101001₂
• Hexadecimal: 0x1DF1CA9
• Base-36: IOZOP

Squares and roots of 31399081

• 31399081 squared (31399081²) is 985902287644561
• 31399081 cubed (31399081³) is 30956425787836870048441
• The square root of 31399081 is 5603.4882885573
• The cube root of 31399081 is 315.4803488521

Scales and comparisons

• 31,399,081 seconds is equal to 51 weeks, 6 days, 9 hours, 58 minutes, 1 second.
• To count from 1 to 31,399,081 would take you about twenty-five 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 31399081 cubic inches would be around 26.3 feet tall.

Recreational maths with 31399081

• 31399081 backwards is 18099313
• The number of decimal digits it has is: 8
• The sum of 31399081's digits is 34
• More coming soon!