31481157

Names of 31481157

• Cardinal: 31481157 can be written as Thirty-one million, four hundred eighty-one thousand, one hundred fifty-seven.

Scientific notation

• Scientific notation: 3.1481157 × 10⁷

Factors of 31481157

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 552323

Divisors of 31481157

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 19 57 552301 1656903 10493719 31481157
• Sum of all divisors σ(n): 44184160
• Sum of proper divisors (its aliquot sum) s(n): 12703003
• 31481157 is a deficient number, because the sum of its proper divisors (12703003) is less than itself. Its deficiency is 18778154

Bases of 31481157

• Binary: 1111000000101110101000101₂
• Hexadecimal: 0x1E05D45
• Base-36: IQR0L

Squares and roots of 31481157

• 31481157 squared (31481157²) is 991063246058649
• 31481157 cubed (31481157³) is 31199817646101960376893
• The square root of 31481157 is 5610.8071611847
• The cube root of 31481157 is 315.7549942195

Scales and comparisons

• 31,481,157 seconds is equal to 1 year, 8 hours, 45 minutes, 57 seconds.
• To count from 1 to 31,481,157 would take you about twenty-six 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 31481157 cubic inches would be around 26.3 feet tall.

Recreational maths with 31481157

• 31481157 backwards is 75118413
• The number of decimal digits it has is: 8
• The sum of 31481157's digits is 30
• More coming soon!