39997

Names of 39997

• Cardinal: 39997 can be written as Thirty-nine thousand, nine hundred ninety-seven.

Scientific notation

• Scientific notation: 3.9997 × 10⁴

Factors of 39997

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 107

Divisors of 39997

• Number of divisors d(n): 8
• Complete list of divisors:
  1 23 37 47 851 1081 1739 39997
• Sum of all divisors σ(n): 43776
• Sum of proper divisors (its aliquot sum) s(n): 3779
• 39997 is a deficient number, because the sum of its proper divisors (3779) is less than itself. Its deficiency is 36218

Bases of 39997

• Binary: 1001110000111101₂
• Hexadecimal: 0x9C3D
• Base-36: UV1

Squares and roots of 39997

• 39997 squared (39997²) is 1599760009
• 39997 cubed (39997³) is 63985601079973
• The square root of 39997 is 199.9924998593
• The cube root of 39997 is 34.1986639241

Scales and comparisons

• 39,997 seconds is equal to 11 hours, 6 minutes, 37 seconds.
• To count from 1 to 39,997 would take you about eleven 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 39997 cubic inches would be around 2.8 feet tall.

Recreational maths with 39997

• 39997 backwards is 79993
• 39997 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 39997's digits is 37
• More coming soon!