3813

Names of 3813

• Cardinal: 3813 can be written as Three thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 3.813 × 10³

Factors of 3813

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 75

Divisors of 3813

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 31 41 93 123 1271 3813
• Sum of all divisors σ(n): 5376
• Sum of proper divisors (its aliquot sum) s(n): 1563
• 3813 is a deficient number, because the sum of its proper divisors (1563) is less than itself. Its deficiency is 2250

Bases of 3813

• Binary: 111011100101₂
• Hexadecimal: 0xEE5
• Base-36: 2XX

Squares and roots of 3813

• 3813 squared (3813²) is 14538969
• 3813 cubed (3813³) is 55437088797
• The square root of 3813 is 61.7494939251
• The cube root of 3813 is 15.6226823229

Scales and comparisons

• 3,813 seconds is equal to 1 hour, 3 minutes, 33 seconds.
• To count from 1 to 3,813 would take you about three 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 3813 cubic inches would be around 1.3 feet tall.

Recreational maths with 3813

• 3813 backwards is 3183
• The number of decimal digits it has is: 4
• The sum of 3813's digits is 15
• More coming soon!