322

322 is a natural number that comes after 321 and before 323. In Roman numerals, it is written CCCXXII.

In mathematics, 322 is an even composite number with prime factorization 2 × 7 × 23. Its eight positive divisors are 1, 2, 7, 14, 23, 46, 161, and 322, and the sum of all divisors is 576. It is not a prime power and not a perfect square. 322 is a Harshad (Niven) number in base 10, since the sum of its digits is 3+2+2 = 7 and 322 is divisible by 7 (322 ÷ 7 = 46).

Numeral representations of 322 include various bases: in binary it is 101000010; in octal it is 502; in base 3 it is 102221, and in base 4 it is 11002. In decimal, its standard representation is simply 322, and in Roman numerals it is CCCXXII.

Calendar and chronology: day 322 of a common year corresponds to November 18, while in a leap year it falls on November 17. Historically, the year 322 BCE is notable for the death of the ancient Greek philosopher Aristotle in Chalcis, on the island of Euboea, marking a transition point in classical philosophy.

Notes and related topics: 322 is one of many integers studied for its factorization properties and representations across bases. See also discussions of divisor functions, Harshad numbers, and numeral systems for additional context.