82005

Names of 82005

• Cardinal: 82005 can be written as Eighty-two thousand and five.

Scientific notation

• Scientific notation: 8.2005 × 10⁴

Factors of 82005

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 97

Divisors of 82005

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 5 7 11 15 21 33 35 55 71 77 105 165 213 231 355 385 497 781 1065 1155 1491 2343 2485 3905 5467 7455 11715 16401 27335 82005
• Sum of all divisors σ(n): 165888
• Sum of proper divisors (its aliquot sum) s(n): 83883
• 82005 is an abundant number, because the sum of its proper divisors (83883) is greater than itself. Its abundance is 1878

Bases of 82005

• Binary: 10100000001010101₂
• Hexadecimal: 0x14055
• Base-36: 1R9X

Squares and roots of 82005

• 82005 squared (82005²) is 6724820025
• 82005 cubed (82005³) is 551468866150125
• The square root of 82005 is 286.3651515111
• The cube root of 82005 is 43.4456978645

Scales and comparisons

• 82,005 seconds is equal to 22 hours, 46 minutes, 45 seconds.
• To count from 1 to 82,005 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 82005 cubic inches would be around 3.6 feet tall.

Recreational maths with 82005

• 82005 backwards is 50028
• 82005 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 82005's digits is 15
• More coming soon!