81080

Names of 81080

• Cardinal: 81080 can be written as Eighty-one thousand and eighty.

Scientific notation

• Scientific notation: 8.108 × 10⁴

Factors of 81080

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 2034

Divisors of 81080

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 4 5 8 10 20 40 2027 4054 8108 10135 16216 20270 40540 81080
• Sum of all divisors σ(n): 182520
• Sum of proper divisors (its aliquot sum) s(n): 101440
• 81080 is an abundant number, because the sum of its proper divisors (101440) is greater than itself. Its abundance is 20360

Bases of 81080

• Binary: 10011110010111000₂
• Hexadecimal: 0x13CB8
• Base-36: 1QK8

Squares and roots of 81080

• 81080 squared (81080²) is 6573966400
• 81080 cubed (81080³) is 533017195712000
• The square root of 81080 is 284.7455004035
• The cube root of 81080 is 43.2817268625

Scales and comparisons

• 81,080 seconds is equal to 22 hours, 31 minutes, 20 seconds.
• To count from 1 to 81,080 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 81080 cubic inches would be around 3.6 feet tall.

Recreational maths with 81080

• 81080 backwards is 08018
• The number of decimal digits it has is: 5
• The sum of 81080's digits is 17
• More coming soon!