423404

423404 is a natural number that lies between 423403 and 423405. It is an even, composite number with several straightforward arithmetic properties.

In factorization terms, 423404 = 4 × 105,851, or equivalently 2^2 × 105,851. The digit sum of 423404 is 17, so the number is not divisible by 3 or 9, and it is not a multiple of 5. Beyond the factor 4, the cofactor 105,851 is odd; a complete prime factorization would require testing primes up to the square root of 105,851 (approximately 325). Current small-prime tests up to 101 do not yield a further factorization.

In common numeral systems, 423404 is represented in binary as 1100111010111101100_2 and in hexadecimal as 675EC_16.

While 423404 does not have notable named applications or a widely cited significance in mathematics, it serves as an example of an even composite integer with a relatively large odd cofactor. Its properties align with general observations about even numbers and composite integers in number theory.

See also: 423403, 423405, and other nearby integers for context within the sequence of natural numbers.