6665

Names of 6665

• Cardinal: 6665 can be written as Six thousand, six hundred sixty-five.

Scientific notation

• Scientific notation: 6.665 × 10³

Factors of 6665

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 79

Divisors of 6665

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 31 43 155 215 1333 6665
• Sum of all divisors σ(n): 8448
• Sum of proper divisors (its aliquot sum) s(n): 1783
• 6665 is a deficient number, because the sum of its proper divisors (1783) is less than itself. Its deficiency is 4882

Bases of 6665

• Binary: 1101000001001₂
• Hexadecimal: 0x1A09
• Base-36: 555

Squares and roots of 6665

• 6665 squared (6665²) is 44422225
• 6665 cubed (6665³) is 296074129625
• The square root of 6665 is 81.6394512475
• The cube root of 6665 is 18.8191520535

Scales and comparisons

• 6,665 seconds is equal to 1 hour, 51 minutes, 5 seconds.
• To count from 1 to 6,665 would take you about fifty-one 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 6665 cubic inches would be around 1.6 feet tall.

Recreational maths with 6665

• 6665 backwards is 5666
• The number of decimal digits it has is: 4
• The sum of 6665's digits is 23
• More coming soon!