1231

Names of 1231

• Cardinal: 1231 can be written as One thousand, two hundred thirty-one.

Scientific notation

• Scientific notation: 1.231 × 10³

Factors of 1231

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 1231

Divisors of 1231

• Number of divisors d(n): 2
• Complete list of divisors:
  1 1231
• Sum of all divisors σ(n): 1232
• Sum of proper divisors (its aliquot sum) s(n): 1
• 1231 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 1230

Bases of 1231

• Binary: 10011001111₂
• Hexadecimal: 0x4CF
• Base-36: Y7

Squares and roots of 1231

• 1231 squared (1231²) is 1515361
• 1231 cubed (1231³) is 1865409391
• The square root of 1231 is 35.0856095857
• The cube root of 1231 is 10.7173155453

Scales and comparisons

• 1,231 seconds is equal to 20 minutes, 31 seconds.
• To count from 1 to 1,231 would take you about twenty 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 1231 cubic inches would be around 0.9 feet tall.

Recreational maths with 1231

• 1231 backwards is 1321
• The number of decimal digits it has is: 4
• The sum of 1231's digits is 7
• More coming soon!