40381

Names of 40381

• Cardinal: 40381 can be written as Forty thousand, three hundred eighty-one.

Scientific notation

• Scientific notation: 4.0381 × 10⁴

Factors of 40381

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 3682

Divisors of 40381

• Number of divisors d(n): 4
• Complete list of divisors:
  1 11 3671 40381
• Sum of all divisors σ(n): 44064
• Sum of proper divisors (its aliquot sum) s(n): 3683
• 40381 is a deficient number, because the sum of its proper divisors (3683) is less than itself. Its deficiency is 36698

Bases of 40381

• Binary: 1001110110111101₂
• Hexadecimal: 0x9DBD
• Base-36: V5P

Squares and roots of 40381

• 40381 squared (40381²) is 1630625161
• 40381 cubed (40381³) is 65846274626341
• The square root of 40381 is 200.9502425975
• The cube root of 40381 is 34.3077594665

Scales and comparisons

• 40,381 seconds is equal to 11 hours, 13 minutes, 1 second.
• To count from 1 to 40,381 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 40381 cubic inches would be around 2.9 feet tall.

Recreational maths with 40381

• 40381 backwards is 18304
• The number of decimal digits it has is: 5
• The sum of 40381's digits is 16
• More coming soon!