82021

Names of 82021

• Cardinal: 82021 can be written as Eighty-two thousand and twenty-one.

Scientific notation

• Scientific notation: 8.2021 × 10⁴

Factors of 82021

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 82021

Divisors of 82021

• Number of divisors d(n): 2
• Complete list of divisors:
  1 82021
• Sum of all divisors σ(n): 82022
• Sum of proper divisors (its aliquot sum) s(n): 1
• 82021 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 82020

Bases of 82021

• Binary: 10100000001100101₂
• Hexadecimal: 0x14065
• Base-36: 1RAD

Squares and roots of 82021

• 82021 squared (82021²) is 6727444441
• 82021 cubed (82021³) is 551791720495261
• The square root of 82021 is 286.3930865087
• The cube root of 82021 is 43.4485232449

Scales and comparisons

• 82,021 seconds is equal to 22 hours, 47 minutes, 1 second.
• To count from 1 to 82,021 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 82021 cubic inches would be around 3.6 feet tall.

Recreational maths with 82021

• 82021 backwards is 12028
• The number of decimal digits it has is: 5
• The sum of 82021's digits is 13
• More coming soon!