8081

Names of 8081

• Cardinal: 8081 can be written as Eight thousand and eighty-one.

Scientific notation

• Scientific notation: 8.081 × 10³

Factors of 8081

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 8081

Divisors of 8081

• Number of divisors d(n): 2
• Complete list of divisors:
  1 8081
• Sum of all divisors σ(n): 8082
• Sum of proper divisors (its aliquot sum) s(n): 1
• 8081 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 8080

Bases of 8081

• Binary: 1111110010001₂
• Hexadecimal: 0x1F91
• Base-36: 68H

Squares and roots of 8081

• 8081 squared (8081²) is 65302561
• 8081 cubed (8081³) is 527709995441
• The square root of 8081 is 89.8943824719
• The cube root of 8081 is 20.0672734601

Scales and comparisons

• 8,081 seconds is equal to 2 hours, 14 minutes, 41 seconds.
• To count from 1 to 8,081 would take you about 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 8081 cubic inches would be around 1.7 feet tall.

Recreational maths with 8081

• 8081 backwards is 1808
• The number of decimal digits it has is: 4
• The sum of 8081's digits is 17
• More coming soon!