30813

Names of 30813

• Cardinal: 30813 can be written as Thirty thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 3.0813 × 10⁴

Factors of 30813

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10274

Divisors of 30813

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 10271 30813
• Sum of all divisors σ(n): 41088
• Sum of proper divisors (its aliquot sum) s(n): 10275
• 30813 is a deficient number, because the sum of its proper divisors (10275) is less than itself. Its deficiency is 20538

Bases of 30813

• Binary: 111100001011101₂
• Hexadecimal: 0x785D
• Base-36: NRX

Squares and roots of 30813

• 30813 squared (30813²) is 949440969
• 30813 cubed (30813³) is 29255124577797
• The square root of 30813 is 175.5363210279
• The cube root of 30813 is 31.3505136907

Scales and comparisons

• 30,813 seconds is equal to 8 hours, 33 minutes, 33 seconds.
• To count from 1 to 30,813 would take you about eight 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 30813 cubic inches would be around 2.6 feet tall.

Recreational maths with 30813

• 30813 backwards is 31803
• The number of decimal digits it has is: 5
• The sum of 30813's digits is 15
• More coming soon!