9986

Names of 9986

• Cardinal: 9986 can be written as Nine thousand, nine hundred eighty-six.

Scientific notation

• Scientific notation: 9.986 × 10³

Factors of 9986

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4995

Divisors of 9986

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 4993 9986
• Sum of all divisors σ(n): 14982
• Sum of proper divisors (its aliquot sum) s(n): 4996
• 9986 is a deficient number, because the sum of its proper divisors (4996) is less than itself. Its deficiency is 4990

Bases of 9986

• Binary: 10011100000010₂
• Hexadecimal: 0x2702
• Base-36: 7PE

Squares and roots of 9986

• 9986 squared (9986²) is 99720196
• 9986 cubed (9986³) is 995805877256
• The square root of 9986 is 99.9299754829
• The cube root of 9986 is 21.5342881763

Scales and comparisons

• 9,986 seconds is equal to 2 hours, 46 minutes, 26 seconds.
• To count from 1 to 9,986 would take you about two 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 9986 cubic inches would be around 1.8 feet tall.

Recreational maths with 9986

• 9986 backwards is 6899
• The number of decimal digits it has is: 4
• The sum of 9986's digits is 32
• More coming soon!