13940

Names of 13940

• Cardinal: 13940 can be written as Thirteen thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.394 × 10⁴

Factors of 13940

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 65

Divisors of 13940

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 4 5 10 17 20 34 41 68 82 85 164 170 205 340 410 697 820 1394 2788 3485 6970 13940
• Sum of all divisors σ(n): 31752
• Sum of proper divisors (its aliquot sum) s(n): 17812
• 13940 is an abundant number, because the sum of its proper divisors (17812) is greater than itself. Its abundance is 3872

Bases of 13940

• Binary: 11011001110100₂
• Hexadecimal: 0x3674
• Base-36: AR8

Squares and roots of 13940

• 13940 squared (13940²) is 194323600
• 13940 cubed (13940³) is 2708870984000
• The square root of 13940 is 118.0677771451
• The cube root of 13940 is 24.0669427339

Scales and comparisons

• 13,940 seconds is equal to 3 hours, 52 minutes, 20 seconds.
• To count from 1 to 13,940 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 13940 cubic inches would be around 2 feet tall.

Recreational maths with 13940

• 13940 backwards is 04931
• 13940 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 13940's digits is 17
• More coming soon!