40405065

Names of 40405065

• Cardinal: 40405065 can be written as Forty million, four hundred five thousand and sixty-five.

Scientific notation

• Scientific notation: 4.0405065 × 10⁷

Factors of 40405065

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 2693679

Divisors of 40405065

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 2693671 8081013 13468355 40405065
• Sum of all divisors σ(n): 64648128
• Sum of proper divisors (its aliquot sum) s(n): 24243063
• 40405065 is a deficient number, because the sum of its proper divisors (24243063) is less than itself. Its deficiency is 16162002

Bases of 40405065

• Binary: 10011010001000100001001001₂
• Hexadecimal: 0x2688849
• Base-36: O20QX

Squares and roots of 40405065

• 40405065 squared (40405065²) is 1632569277654225
• 40405065 cubed (40405065³) is 65964067780622008649625
• The square root of 40405065 is 6356.4978565245
• The cube root of 40405065 is 343.1457333333

Scales and comparisons

• 40,405,065 seconds is equal to 1 year, 14 weeks, 5 days, 15 hours, 37 minutes, 45 seconds.
• To count from 1 to 40,405,065 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 40405065 cubic inches would be around 28.6 feet tall.

Recreational maths with 40405065

• 40405065 backwards is 56050404
• The number of decimal digits it has is: 8
• The sum of 40405065's digits is 24
• More coming soon!