3513

3513 is a natural number that lies between 3512 and 3514. It is an odd composite integer that has a simple prime factorization and a few characteristic representations in different numeral systems.

In number theory, 3513 factors into 3 × 1171, and 1171 is a prime number. Therefore, 3513 is a semiprime (the product of two primes). Its positive divisors are exactly 1, 3, 1171, and 3513.

In various representations, 3513 can be written as 110110111001 in binary and as 0xDB9 in hexadecimal. In Roman numerals, it is MMMDXIII. The sum of its decimal digits is 12, which makes the number divisible by 3 but not by 9; consequently, 3513 is not a Harshad number.

As a numeric identifier, 3513 may appear in mathematical tables or cataloging contexts, and like many integers it can be used to illustrate properties such as factorization, parity, and numeral-system representations. There are no widely noted historical events or well-known constants specifically associated with the year or number 3513 in standard references.