40805985

Names of 40805985

• Cardinal: 40805985 can be written as Forty million, eight hundred five thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 4.0805985 × 10⁷

Factors of 40805985

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 247328

Divisors of 40805985

• Number of divisors d(n): 16
• Complete list of divisors:
  1 3 5 11 15 33 55 165 247309 741927 1236545 2720399 3709635 8161197 13601995 40805985
• Sum of all divisors σ(n): 71225280
• Sum of proper divisors (its aliquot sum) s(n): 30419295
• 40805985 is a deficient number, because the sum of its proper divisors (30419295) is less than itself. Its deficiency is 10386690

Bases of 40805985

• Binary: 10011011101010011001100001₂
• Hexadecimal: 0x26EA661
• Base-36: OAM3L

Squares and roots of 40805985

• 40805985 squared (40805985²) is 1665128411820225
• 40805985 cubed (40805985³) is 67947204995809924046625
• The square root of 40805985 is 6387.9562459363
• The cube root of 40805985 is 344.2769566297

Scales and comparisons

• 40,805,985 seconds is equal to 1 year, 15 weeks, 3 days, 6 hours, 59 minutes, 45 seconds.
• To count from 1 to 40,805,985 would take you about forty-nine weeks!

  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 40805985 cubic inches would be around 28.7 feet tall.

Recreational maths with 40805985

• 40805985 backwards is 58950804
• The number of decimal digits it has is: 8
• The sum of 40805985's digits is 39
• More coming soon!