3573
3573 is a natural number in the decimal system. It follows 3572 and precedes 3574.
It is odd and composite. Its prime factorization is 3^2 × 397, so 3573 = 9 × 397. The positive divisors are 1, 3, 9, 397, 1191, and 3573. The sum of its digits is 18, which indicates divisibility by 9 and, consequently, by 3.
In other bases, 3573 equals 110111110101 in binary and DF5 in hexadecimal.
As a small composite number, 3573 is mainly of interest for illustrating factorization and divisor structure.