331

Names of 331

• Cardinal: 331 can be written as Three hundred thirty-one.

Scientific notation

• Scientific notation: 3.31 × 10²

Factors of 331

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 331

Divisors of 331

• Number of divisors d(n): 2
• Complete list of divisors:
  1 331
• Sum of all divisors σ(n): 332
• Sum of proper divisors (its aliquot sum) s(n): 1
• 331 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 330

Bases of 331

• Binary: 101001011₂
• Hexadecimal: 0x14B
• Base-36: 97

Squares and roots of 331

• 331 squared (331²) is 109561
• 331 cubed (331³) is 36264691
• The square root of 331 is 18.1934053987
• The cube root of 331 is 6.9173964165

Scales and comparisons

• 331 seconds is equal to 5 minutes, 31 seconds.
• To count from 1 to 331 would take you about two minutes.

  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 331 cubic inches would be around 0.6 feet tall.

Recreational maths with 331

• 331 backwards is 133
• The number of decimal digits it has is: 3
• The sum of 331's digits is 7
• More coming soon!