40386

Names of 40386

• Cardinal: 40386 can be written as Forty thousand, three hundred eighty-six.

Scientific notation

• Scientific notation: 4.0386 × 10⁴

Factors of 40386

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 185

Divisors of 40386

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 6 53 106 127 159 254 318 381 762 6731 13462 20193 40386
• Sum of all divisors σ(n): 82944
• Sum of proper divisors (its aliquot sum) s(n): 42558
• 40386 is an abundant number, because the sum of its proper divisors (42558) is greater than itself. Its abundance is 2172

Bases of 40386

• Binary: 1001110111000010₂
• Hexadecimal: 0x9DC2
• Base-36: V5U

Squares and roots of 40386

• 40386 squared (40386²) is 1631028996
• 40386 cubed (40386³) is 65870737032456
• The square root of 40386 is 200.9626831031
• The cube root of 40386 is 34.3091754105

Scales and comparisons

• 40,386 seconds is equal to 11 hours, 13 minutes, 6 seconds.
• To count from 1 to 40,386 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 40386 cubic inches would be around 2.9 feet tall.

Recreational maths with 40386

• 40386 backwards is 68304
• The number of decimal digits it has is: 5
• The sum of 40386's digits is 21
• More coming soon!