40405399

Names of 40405399

• Cardinal: 40405399 can be written as Forty million, four hundred five thousand, three hundred ninety-nine.

Scientific notation

• Scientific notation: 4.0405399 × 10⁷

Factors of 40405399

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 40405399

Divisors of 40405399

• Number of divisors d(n): 2
• Complete list of divisors:
  1 40405399
• Sum of all divisors σ(n): 40405400
• Sum of proper divisors (its aliquot sum) s(n): 1
• 40405399 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 40405398

Bases of 40405399

• Binary: 10011010001000100110010111₂
• Hexadecimal: 0x2688997
• Base-36: O2107

Squares and roots of 40405399

• 40405399 squared (40405399²) is 1632596268349201
• 40405399 cubed (40405399³) is 65965703628560537736199
• The square root of 40405399 is 6356.5241287987
• The cube root of 40405399 is 343.1466788447

Scales and comparisons

• 40,405,399 seconds is equal to 1 year, 14 weeks, 5 days, 15 hours, 43 minutes, 19 seconds.
• To count from 1 to 40,405,399 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 40405399 cubic inches would be around 28.6 feet tall.

Recreational maths with 40405399

• 40405399 backwards is 99350404
• The number of decimal digits it has is: 8
• The sum of 40405399's digits is 34
• More coming soon!