3965

Names of 3965

• Cardinal: 3965 can be written as Three thousand, nine hundred sixty-five.

Scientific notation

• Scientific notation: 3.965 × 10³

Factors of 3965

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

Divisors of 3965

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 13 61 65 305 793 3965
• Sum of all divisors σ(n): 5208
• Sum of proper divisors (its aliquot sum) s(n): 1243
• 3965 is a deficient number, because the sum of its proper divisors (1243) is less than itself. Its deficiency is 2722

Bases of 3965

• Binary: 111101111101₂
• Hexadecimal: 0xF7D
• Base-36: 325

Squares and roots of 3965

• 3965 squared (3965²) is 15721225
• 3965 cubed (3965³) is 62334657125
• The square root of 3965 is 62.9682459657
• The cube root of 3965 is 15.8275756227

Scales and comparisons

• 3,965 seconds is equal to 1 hour, 6 minutes, 5 seconds.
• To count from 1 to 3,965 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 3965 cubic inches would be around 1.3 feet tall.

Recreational maths with 3965

• 3965 backwards is 5693
• The number of decimal digits it has is: 4
• The sum of 3965's digits is 23
• More coming soon!