12813

Names of 12813

• Cardinal: 12813 can be written as Twelve thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 1.2813 × 10⁴

Factors of 12813

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4274

Divisors of 12813

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 4271 12813
• Sum of all divisors σ(n): 17088
• Sum of proper divisors (its aliquot sum) s(n): 4275
• 12813 is a deficient number, because the sum of its proper divisors (4275) is less than itself. Its deficiency is 8538

Bases of 12813

• Binary: 11001000001101₂
• Hexadecimal: 0x320D
• Base-36: 9VX

Squares and roots of 12813

• 12813 squared (12813²) is 164172969
• 12813 cubed (12813³) is 2103548251797
• The square root of 12813 is 113.1945228357
• The cube root of 12813 is 23.4000584411

Scales and comparisons

• 12,813 seconds is equal to 3 hours, 33 minutes, 33 seconds.
• To count from 1 to 12,813 would take you about three 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 12813 cubic inches would be around 2 feet tall.

Recreational maths with 12813

• 12813 backwards is 31821
• The number of decimal digits it has is: 5
• The sum of 12813's digits is 15
• More coming soon!