90081

Names of 90081

• Cardinal: 90081 can be written as Ninety thousand and eighty-one.

Scientific notation

• Scientific notation: 9.0081 × 10⁴

Factors of 90081

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 10012

Divisors of 90081

• Number of divisors d(n): 6
• Complete list of divisors:
  1 3 9 10009 30027 90081
• Sum of all divisors σ(n): 130130
• Sum of proper divisors (its aliquot sum) s(n): 40049
• 90081 is a deficient number, because the sum of its proper divisors (40049) is less than itself. Its deficiency is 50032

Bases of 90081

• Binary: 10101111111100001₂
• Hexadecimal: 0x15FE1
• Base-36: 1XI9

Squares and roots of 90081

• 90081 squared (90081²) is 8114586561
• 90081 cubed (90081³) is 730970072001441
• The square root of 90081 is 300.1349696385
• The cube root of 90081 is 44.8274876485

Scales and comparisons

• 90,081 seconds is equal to 1 day, 1 hour, 1 minute, 21 seconds.
• To count from 1 to 90,081 would take you about twenty-one seconds.

  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 90081 cubic inches would be around 3.7 feet tall.

Recreational maths with 90081

• 90081 backwards is 18009
• The number of decimal digits it has is: 5
• The sum of 90081's digits is 18
• More coming soon!