3986

Names of 3986

• Cardinal: 3986 can be written as Three thousand, nine hundred eighty-six.

Scientific notation

• Scientific notation: 3.986 × 10³

Factors of 3986

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1995

Divisors of 3986

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 1993 3986
• Sum of all divisors σ(n): 5982
• Sum of proper divisors (its aliquot sum) s(n): 1996
• 3986 is a deficient number, because the sum of its proper divisors (1996) is less than itself. Its deficiency is 1990

Bases of 3986

• Binary: 111110010010₂
• Hexadecimal: 0xF92
• Base-36: 32Q

Squares and roots of 3986

• 3986 squared (3986²) is 15888196
• 3986 cubed (3986³) is 63330349256
• The square root of 3986 is 63.1347764707
• The cube root of 3986 is 15.8554691923

Scales and comparisons

• 3,986 seconds is equal to 1 hour, 6 minutes, 26 seconds.
• To count from 1 to 3,986 would take you about six 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 3986 cubic inches would be around 1.3 feet tall.

Recreational maths with 3986

• 3986 backwards is 6893
• The number of decimal digits it has is: 4
• The sum of 3986's digits is 26
• More coming soon!