993

Names of 993

• Cardinal: 993 can be written as Nine hundred ninety-three.

Scientific notation

• Scientific notation: 9.93 × 10²

Factors of 993

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 334

Divisors of 993

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 331 993
• Sum of all divisors σ(n): 1328
• Sum of proper divisors (its aliquot sum) s(n): 335
• 993 is a deficient number, because the sum of its proper divisors (335) is less than itself. Its deficiency is 658

Bases of 993

• Binary: 1111100001₂
• Hexadecimal: 0x3E1
• Base-36: RL

Squares and roots of 993

• 993 squared (993²) is 986049
• 993 cubed (993³) is 979146657
• The square root of 993 is 31.5119025131
• The cube root of 993 is 9.9766120095

Scales and comparisons

• 993 seconds is equal to 16 minutes, 33 seconds.
• To count from 1 to 993 would take you about eight 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 993 cubic inches would be around 0.8 feet tall.

Recreational maths with 993

• 993 backwards is 399
• The number of decimal digits it has is: 3
• The sum of 993's digits is 21
• More coming soon!