3147

3147 is a natural number that lies between 3146 and 3148. In mathematics, it has the prime factorization 3 × 1049, where 1049 is a prime number. Therefore, 3147 is a semiprime and is not a prime. The sum of its digits is 15, so the number is divisible by 3 and is odd. It is not divisible by 2, 5, or any other small prime except 3 and 1049.

In base representations, 3147 equals 0xC4B in hexadecimal and 110001001011 in binary. In Roman numerals it is written as MMMCXLVII.

Regarding representations as a sum of two squares, 3147 cannot be expressed as a sum of two integer squares because its prime factorization contains a prime congruent to 3 modulo 4 with an odd exponent (the factor 3).

As a general number, 3147 is mainly encountered in arithmetic examples or numerical lists. It does not correspond to a widely used constant, calendar year, or standardized designation in common reference works, aside from its role as a specific integer in mathematical discussions.