13685

Names of 13685

• Cardinal: 13685 can be written as Thirteen thousand, six hundred eighty-five.

Scientific notation

• Scientific notation: 1.3685 × 10⁴

Factors of 13685

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 52

Divisors of 13685

• Number of divisors d(n): 16
• Complete list of divisors:
  1 5 7 17 23 35 85 115 119 161 391 595 805 1955 2737 13685
• Sum of all divisors σ(n): 20736
• Sum of proper divisors (its aliquot sum) s(n): 7051
• 13685 is a deficient number, because the sum of its proper divisors (7051) is less than itself. Its deficiency is 6634

Bases of 13685

• Binary: 11010101110101₂
• Hexadecimal: 0x3575
• Base-36: AK5

Squares and roots of 13685

• 13685 squared (13685²) is 187279225
• 13685 cubed (13685³) is 2562916194125
• The square root of 13685 is 116.9829047341
• The cube root of 13685 is 23.9192890621

Scales and comparisons

• 13,685 seconds is equal to 3 hours, 48 minutes, 5 seconds.
• To count from 1 to 13,685 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 13685 cubic inches would be around 2 feet tall.

Recreational maths with 13685

• 13685 backwards is 58631
• 13685 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 13685's digits is 23
• More coming soon!