110 (number)

110 (one hundred and ten) is the natural number following 109 and preceding 111.

Mathematics:

• 110 is a composite number.
• Its proper divisors are 1, 2, 5, 10, 11, 22, and 55.
• 110 is a nontotient number.
• 110 is a Harshad number in base 10.
• 110 is the sum of four consecutive primes: 23 + 29 + 31 + 27.
• 110 is the sum of the first ten non-Fibonacci numbers.

Other Uses:

• 110 is a common emergency telephone number in some countries, including Japan and China (where it is used for police).
• 110 is a voltage standard used in some countries, primarily in North America.
• "110" is occasionally used as slang or code for other concepts, depending on context.