81364

Names of 81364

• Cardinal: 81364 can be written as Eighty-one thousand, three hundred sixty-four.

Scientific notation

• Scientific notation: 8.1364 × 10⁴

Factors of 81364

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 20343

Divisors of 81364

• Number of divisors d(n): 6
• Complete list of divisors:
  1 2 4 20341 40682 81364
• Sum of all divisors σ(n): 142394
• Sum of proper divisors (its aliquot sum) s(n): 61030
• 81364 is a deficient number, because the sum of its proper divisors (61030) is less than itself. Its deficiency is 20334

Bases of 81364

• Binary: 10011110111010100₂
• Hexadecimal: 0x13DD4
• Base-36: 1QS4

Squares and roots of 81364

• 81364 squared (81364²) is 6620100496
• 81364 cubed (81364³) is 538637856756544
• The square root of 81364 is 285.2437554093
• The cube root of 81364 is 43.3322024689

Scales and comparisons

• 81,364 seconds is equal to 22 hours, 36 minutes, 4 seconds.
• To count from 1 to 81,364 would take you about twenty-two 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 81364 cubic inches would be around 3.6 feet tall.

Recreational maths with 81364

• 81364 backwards is 46318
• The number of decimal digits it has is: 5
• The sum of 81364's digits is 22
• More coming soon!