8400

8400 is the natural number that follows 8399 and precedes 8401. It is used as a numerical identifier in various contexts and can appear in mathematical, technological, and cataloging settings.

In mathematics, 8400 is an even composite number with prime factorization 2^4 × 3 × 5^2 × 7. It is divisible by 16, 25, 3, and 7, among other divisors. The sum of its digits is 12, so 8400 is a Harshad (or Niven) number in base 10, meaning it is divisible by the sum of its digits.

In technology, 8400 has appeared as a model number for consumer electronics, and is notably associated with the Intel Core i5-8400, a mid-range desktop processor released in 2017 as part of Intel’s Coffee Lake generation. Such model numbers are used by manufacturers to distinguish product variants and generations.

In other contexts, 8400 may be used as a catalog, part, or serial number, or in coding and numbering schemes where a four-digit identifier is appropriate. As a numeric value, it can also be used in calculations and measurements wherever a whole-number quantity is required.