1315

Names of 1315

• Cardinal: 1315 can be written as One thousand, three hundred fifteen.

Scientific notation

• Scientific notation: 1.315 × 10³

Factors of 1315

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 268

Divisors of 1315

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 263 1315
• Sum of all divisors σ(n): 1584
• Sum of proper divisors (its aliquot sum) s(n): 269
• 1315 is a deficient number, because the sum of its proper divisors (269) is less than itself. Its deficiency is 1046

Bases of 1315

• Binary: 10100100011₂
• Hexadecimal: 0x523
• Base-36: 10J

Squares and roots of 1315

• 1315 squared (1315²) is 1729225
• 1315 cubed (1315³) is 2273930875
• The square root of 1315 is 36.2629287289
• The cube root of 1315 is 10.9557450583

Scales and comparisons

• 1,315 seconds is equal to 21 minutes, 55 seconds.
• To count from 1 to 1,315 would take you about twenty-one 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 1315 cubic inches would be around 0.9 feet tall.

Recreational maths with 1315

• 1315 backwards is 5131
• The number of decimal digits it has is: 4
• The sum of 1315's digits is 10
• More coming soon!