81382

Names of 81382

• Cardinal: 81382 can be written as Eighty-one thousand, three hundred eighty-two.

Scientific notation

• Scientific notation: 8.1382 × 10⁴

Factors of 81382

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 5822

Divisors of 81382

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 7 14 5813 11626 40691 81382
• Sum of all divisors σ(n): 139536
• Sum of proper divisors (its aliquot sum) s(n): 58154
• 81382 is a deficient number, because the sum of its proper divisors (58154) is less than itself. Its deficiency is 23228

Bases of 81382

• Binary: 10011110111100110₂
• Hexadecimal: 0x13DE6
• Base-36: 1QSM

Squares and roots of 81382

• 81382 squared (81382²) is 6623029924
• 81382 cubed (81382³) is 538995421274968
• The square root of 81382 is 285.2753056259
• The cube root of 81382 is 43.3353976661

Scales and comparisons

• 81,382 seconds is equal to 22 hours, 36 minutes, 22 seconds.
• To count from 1 to 81,382 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 81382 cubic inches would be around 3.6 feet tall.

Recreational maths with 81382

• 81382 backwards is 28318
• The number of decimal digits it has is: 5
• The sum of 81382's digits is 22
• More coming soon!