13605

Names of 13605

• Cardinal: 13605 can be written as Thirteen thousand, six hundred five.

Scientific notation

• Scientific notation: 1.3605 × 10⁴

Factors of 13605

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 915

Divisors of 13605

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 907 2721 4535 13605
• Sum of all divisors σ(n): 21792
• Sum of proper divisors (its aliquot sum) s(n): 8187
• 13605 is a deficient number, because the sum of its proper divisors (8187) is less than itself. Its deficiency is 5418

Bases of 13605

• Binary: 11010100100101₂
• Hexadecimal: 0x3525
• Base-36: AHX

Squares and roots of 13605

• 13605 squared (13605²) is 185096025
• 13605 cubed (13605³) is 2518231420125
• The square root of 13605 is 116.6404732501
• The cube root of 13605 is 23.8725886841

Scales and comparisons

• 13,605 seconds is equal to 3 hours, 46 minutes, 45 seconds.
• To count from 1 to 13,605 would take you about three hours.

  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 13605 cubic inches would be around 2 feet tall.

Recreational maths with 13605

• 13605 backwards is 50631
• 13605 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 13605's digits is 15
• More coming soon!