583

583 is a natural number that sits between 582 and 584. In mathematics it is classified as a composite number and specifically as a semiprime, since it factors into two primes.

Its prime factorization is 11 × 53. The divisors of 583 are 1, 11, 53, and 583. The sum of all divisors is 648, while the sum of the proper divisors (excluding 583) is 65, which makes 583 a deficient number. In Roman numerals it is written as DLXXXIII. In binary it equals 1001000111; in octal it is 1107; and in hexadecimal it is 0x247.

As a calendar year, 583 CE falls in late antiquity. It is part of the broader historical milieu of the Byzantine and Sassanian worlds, among others, but no single widely celebrated event is universally singled out for that specific year in general references.

In other contexts, 583 may appear in numerical sequences, computation, and labeling systems where three-digit numbers are used. As with many numbers, its significance is mainly mathematical, with occasional cultural and historical associations tied to particular years or enumerations.