7642

7642 is a natural number that follows 7641 and precedes 7643. In decimal notation it is written as 7642 and is classified as an even, composite integer.

In mathematics, 7642 factors as 2 × 3821, and 3821 is a prime number. Therefore, 7642 is a semiprime, a product of exactly two prime factors. The digit sum of 7642 is 19, giving a digital root of 1. It is not divisible by 3 or 5; it is congruent to 1 modulo 9 and to 2 modulo 4.

Representations of 7642 in various bases include binary and hexadecimal. In binary, 7642 is 1110111011010. In hexadecimal, it is 0x1DDA. In Roman numerals, 7642 can be written as V̄DCXLII, with a vinculum over V to indicate multiplication by 1000.

In broader usage, numbers like 7642 appear in a variety of contexts, including mathematics education, computer science test data, and cataloging systems. In astronomy, minor planets are assigned sequential numbers once their orbits are well established; 7642 represents one such designation within that convention, though the specific object associated with the number is not implied here.

Overall, 7642 is a small, even semiprime with straightforward representations in common numeral systems, and it serves as a representative example of how four-digit integers can exhibit a range of basic mathematical and representational properties.