7123

7123 is a positive integer. In mathematics, it is the natural number that follows 7122 and precedes 7124. It is odd and composite, with a prime factorization of 17 × 419.

Thus, its divisors are 1, 17, 419, and 7123. As a product of two primes, 7123 is classified as a semiprime, a type of number often used in discussions of factorization and cryptography at a basic level.

In different numeral systems, 7123 is represented as follows: binary 1101111010011, octal 15723, and hexadecimal 1BD3. These representations reflect the same value in alternative bases.

The decimal digit sum is 13, so 7123 is not divisible by 3; the digital root is 4. It is not a multiple of 5 or 9, and it is congruent to 4 modulo 9.

Beyond pure mathematics, 7123 may appear as a catalog or model number, a serial designation, or an identifier in datasets. Without context, the sequence is primarily of interest for its arithmetic properties and base representations.