3549

3549 is a natural number that follows 3548 and precedes 3550. In mathematics, it is an odd composite integer. Its prime factorization is 3 × 7 × 13^2, which implies it has twelve positive divisors: 1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, and 3549.

Because it is divisible by 3, 7, and 13, 3549 is not prime. The factorization explains the divisor set and the multiplicative structure. The sum of its digits is 21, so it is divisible by 3 but not by 9. In modular arithmetic, 3549 ≡ 3 (mod 9) and 3549 ≡ 1 (mod 4). In base 2, it has the binary representation 110111011101 (a 12-bit number).

As a numeric label, 3549 may appear in catalogs, designations, or identifiers, but there are no widely recognized historical events specifically tied to this number. The entry here treats 3549 primarily as the integer described by its arithmetic properties.