2223

2223 is a natural number that comes after 2222 and before 2224. It is the product of the prime powers 3^2 × 13 × 19, making it a composite number. As such, it has 12 positive divisors, which are 1, 3, 9, 13, 19, 39, 57, 171, 247, 663, 741, and 2223.

The sum of the digits of 2223 is 9, so the number is divisible by 9. It is also a Harshad number in base 10. The Euler totient function for 2223 is φ(2223) = 1296, reflecting the count of integers less than 2223 that are relatively prime to it.

In Roman numerals, 2223 is written as MMCCXXIII.

In the Gregorian calendar, the year 2223 is not a leap year since it is not divisible by 4, so that year would have 365 days. It falls within the 23rd century of the Common Era.

In culture and fiction, 2223 is sometimes used as a far-future date in stories set in the 23rd century, though there are no widely recognized real-world events specifically tied to this year. It also serves as an example of a four-digit number with multiple small prime factors in discussions of factorization and number properties.

See also: surrounding integers such as 2222 and 2224, and related topics in number theory and calendar systems.