31389429

Names of 31389429

• Cardinal: 31389429 can be written as Thirty-one million, three hundred eighty-nine thousand, four hundred twenty-nine.

Scientific notation

• Scientific notation: 3.1389429 × 10⁷

Factors of 31389429

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 615499

Divisors of 31389429

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 17 51 615479 1846437 10463143 31389429
• Sum of all divisors σ(n): 44314560
• Sum of proper divisors (its aliquot sum) s(n): 12925131
• 31389429 is a deficient number, because the sum of its proper divisors (12925131) is less than itself. Its deficiency is 18464298

Bases of 31389429

• Binary: 1110111101111011011110101₂
• Hexadecimal: 0x1DEF6F5
• Base-36: IOS8L

Squares and roots of 31389429

• 31389429 squared (31389429²) is 985296252946041
• 31389429 cubed (31389429³) is 30927886775815794800589
• The square root of 31389429 is 5602.6269731261
• The cube root of 31389429 is 315.4480195789

Scales and comparisons

• 31,389,429 seconds is equal to 51 weeks, 6 days, 7 hours, 17 minutes, 9 seconds.
• To count from 1 to 31,389,429 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 31389429 cubic inches would be around 26.3 feet tall.

Recreational maths with 31389429

• 31389429 backwards is 92498313
• The number of decimal digits it has is: 8
• The sum of 31389429's digits is 39
• More coming soon!