2423

2423 is the natural number that follows 2422 and precedes 2424. In mathematics, it is a prime number, meaning it has no positive divisors other than 1 and itself. It is odd, and its digits sum to 11, giving a digital root of 2.

In various numeral systems, 2423 can be represented as different strings: in binary it is 100101110111, and in hexadecimal it is 0x977. In Roman numerals, 2423 is written as MMCDXXIII.

As a calendar reference, 2423 may denote the year 2423 CE in the Gregorian calendar or, in historical notation, 2423 BCE for a year in the distant past. Beyond chronology, 2423 frequently appears as a numerical identifier in catalogs, inventory numbers, product models, or file naming, where a four-digit sequence is used for organization and reference.

In numeric theory, 2423 belongs to the set of primes and can be studied alongside neighboring primes for properties such as distribution and gaps between primes. Its primality means it is not expressible as a product of smaller integers, a feature it shares with other primes in the 2400s range.

See also: prime number, list of prime numbers, numeral systems.