40505981

Names of 40505981

• Cardinal: 40505981 can be written as Forty million, five hundred five thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 4.0505981 × 10⁷

Factors of 40505981

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 40505981

Divisors of 40505981

• Number of divisors d(n): 2
• Complete list of divisors:
  1 40505981
• Sum of all divisors σ(n): 40505982
• Sum of proper divisors (its aliquot sum) s(n): 1
• 40505981 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 40505980

Bases of 40505981

• Binary: 10011010100001001001111101₂
• Hexadecimal: 0x26A127D
• Base-36: O46M5

Squares and roots of 40505981

• 40505981 squared (40505981²) is 1640734496772361
• 40505981 cubed (40505981³) is 66459560352305815991141
• The square root of 40505981 is 6364.4309250709
• The cube root of 40505981 is 343.4311769609

Scales and comparisons

• 40,505,981 seconds is equal to 1 year, 14 weeks, 6 days, 19 hours, 39 minutes, 41 seconds.
• To count from 1 to 40,505,981 would take you about forty-eight 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 40505981 cubic inches would be around 28.6 feet tall.

Recreational maths with 40505981

• 40505981 backwards is 18950504
• The number of decimal digits it has is: 8
• The sum of 40505981's digits is 32
• More coming soon!