40155

Names of 40155

• Cardinal: 40155 can be written as Forty thousand, one hundred fifty-five.

Scientific notation

• Scientific notation: 4.0155 × 10⁴

Factors of 40155

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 2685

Divisors of 40155

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 2677 8031 13385 40155
• Sum of all divisors σ(n): 64272
• Sum of proper divisors (its aliquot sum) s(n): 24117
• 40155 is a deficient number, because the sum of its proper divisors (24117) is less than itself. Its deficiency is 16038

Bases of 40155

• Binary: 1001110011011011₂
• Hexadecimal: 0x9CDB
• Base-36: UZF

Squares and roots of 40155

• 40155 squared (40155²) is 1612424025
• 40155 cubed (40155³) is 64746886723875
• The square root of 40155 is 200.3871253349
• The cube root of 40155 is 34.2436363761

Scales and comparisons

• 40,155 seconds is equal to 11 hours, 9 minutes, 15 seconds.
• To count from 1 to 40,155 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 40155 cubic inches would be around 2.9 feet tall.

Recreational maths with 40155

• 40155 backwards is 55104
• 40155 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 40155's digits is 15
• More coming soon!