12745

12745 is a natural number that follows 12744 and precedes 12746. In base-10 notation it is a five-digit number ending in 5.

In mathematics, 12745 is composite; its prime factorization is 5 × 2549, where 2549 is prime. Therefore 12745 is a semiprime and square-free. It has exactly four positive divisors: 1, 5, 2549, and 12745. The sum of its digits is 1+2+7+4+5 = 19, giving a digital root of 1. It is an odd number and is divisible by 5.

In other base representations, 12745 equals 0x31C9 in hexadecimal, 0o30711 in octal, and 11000111001001 in binary.

Contextually, 12745 is often cited as a straightforward example for illustrating prime factorization and properties of semiprimes in introductory number theory. It does not correspond to a widely recognized constant, location, or widely used measurement, but it serves as a concrete case for exploring factor structure and base representations of integers.