40409

Names of 40409

• Cardinal: 40409 can be written as Forty thousand, four hundred nine.

Scientific notation

• Scientific notation: 4.0409 × 10⁴

Factors of 40409

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2394

Divisors of 40409

• Number of divisors d(n): 4
• Complete list of divisors:
  1 17 2377 40409
• Sum of all divisors σ(n): 42804
• Sum of proper divisors (its aliquot sum) s(n): 2395
• 40409 is a deficient number, because the sum of its proper divisors (2395) is less than itself. Its deficiency is 38014

Bases of 40409

• Binary: 1001110111011001₂
• Hexadecimal: 0x9DD9
• Base-36: V6H

Squares and roots of 40409

• 40409 squared (40409²) is 1632887281
• 40409 cubed (40409³) is 65983342137929
• The square root of 40409 is 201.0198995125
• The cube root of 40409 is 34.3156872485

Scales and comparisons

• 40,409 seconds is equal to 11 hours, 13 minutes, 29 seconds.
• To count from 1 to 40,409 would take you about eleven hours.

  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 40409 cubic inches would be around 2.9 feet tall.

Recreational maths with 40409

• 40409 backwards is 90404
• 40409 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 40409's digits is 17
• More coming soon!