81339

Names of 81339

• Cardinal: 81339 can be written as Eighty-one thousand, three hundred thirty-nine.

Scientific notation

• Scientific notation: 8.1339 × 10⁴

Factors of 81339

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1449

Divisors of 81339

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 19 57 1427 4281 27113 81339
• Sum of all divisors σ(n): 114240
• Sum of proper divisors (its aliquot sum) s(n): 32901
• 81339 is a deficient number, because the sum of its proper divisors (32901) is less than itself. Its deficiency is 48438

Bases of 81339

• Binary: 10011110110111011₂
• Hexadecimal: 0x13DBB
• Base-36: 1QRF

Squares and roots of 81339

• 81339 squared (81339²) is 6616032921
• 81339 cubed (81339³) is 538141501761219
• The square root of 81339 is 285.1999298737
• The cube root of 81339 is 43.3277639127

Scales and comparisons

• 81,339 seconds is equal to 22 hours, 35 minutes, 39 seconds.
• To count from 1 to 81,339 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 81339 cubic inches would be around 3.6 feet tall.

Recreational maths with 81339

• 81339 backwards is 93318
• The number of decimal digits it has is: 5
• The sum of 81339's digits is 24
• More coming soon!