1255

Names of 1255

• Cardinal: 1255 can be written as One thousand, two hundred fifty-five.

Scientific notation

• Scientific notation: 1.255 × 10³

Factors of 1255

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 256

Divisors of 1255

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 251 1255
• Sum of all divisors σ(n): 1512
• Sum of proper divisors (its aliquot sum) s(n): 257
• 1255 is a deficient number, because the sum of its proper divisors (257) is less than itself. Its deficiency is 998

Bases of 1255

• Binary: 10011100111₂
• Hexadecimal: 0x4E7
• Base-36: YV

Squares and roots of 1255

• 1255 squared (1255²) is 1575025
• 1255 cubed (1255³) is 1976656375
• The square root of 1255 is 35.4259791679
• The cube root of 1255 is 10.7865172399

Scales and comparisons

• 1,255 seconds is equal to 20 minutes, 55 seconds.
• To count from 1 to 1,255 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 1255 cubic inches would be around 0.9 feet tall.

Recreational maths with 1255

• 1255 backwards is 5521
• The number of decimal digits it has is: 4
• The sum of 1255's digits is 13
• More coming soon!