567

567 is a natural number that follows 566 and precedes 568. In mathematics, it is an odd composite number. Its prime factorization is 3^4 × 7, making it a multiple of 9 and of 7. It has 10 positive divisors.

Its divisors are 1, 3, 7, 9, 21, 27, 63, 81, 189, and 567. The sum of its positive divisors is 968, and the sum of its proper divisors is 401. Because the sum of proper divisors is less than the number, 567 is a deficient number.

In other numeral systems, 567 is represented as follows: in Roman numerals, DLXVII; in binary, 1000110111; in octal, 1067; and in hexadecimal, 237.

Beyond pure number theory, 567 may appear as a model or identifier in catalogs, part numbers, or other labeling schemes. Without a specific context, it does not denote a widely recognized historical year or a distinct scientific constant. As a three-digit integer, 567 is sometimes used in examples and explanations to illustrate properties of composite numbers and base conversions.