9997

Names of 9997

• Cardinal: 9997 can be written as Nine thousand, nine hundred ninety-seven.

Scientific notation

• Scientific notation: 9.997 × 10³

Factors of 9997

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 782

Divisors of 9997

• Number of divisors d(n): 4
• Complete list of divisors:
  1 13 769 9997
• Sum of all divisors σ(n): 10780
• Sum of proper divisors (its aliquot sum) s(n): 783
• 9997 is a deficient number, because the sum of its proper divisors (783) is less than itself. Its deficiency is 9214

Bases of 9997

• Binary: 10011100001101₂
• Hexadecimal: 0x270D
• Base-36: 7PP

Squares and roots of 9997

• 9997 squared (9997²) is 99940009
• 9997 cubed (9997³) is 999100269973
• The square root of 9997 is 99.9849988749
• The cube root of 9997 is 21.5421922501

Scales and comparisons

• 9,997 seconds is equal to 2 hours, 46 minutes, 37 seconds.
• To count from 1 to 9,997 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 9997 cubic inches would be around 1.8 feet tall.

Recreational maths with 9997

• 9997 backwards is 7999
• The number of decimal digits it has is: 4
• The sum of 9997's digits is 34
• More coming soon!