4258

4258 is a natural number that follows 4257 and precedes 4259. In number theory, it is noted for being an even composite number.

Its prime factorization is 4258 = 2 × 2129, where 2129 is a prime. Therefore, 4258 is a semiprime, the product of two primes, and belongs to the common class of numbers formed by multiplying two primes.

The divisors of 4258 are 1, 2, 2129, and 4258. The sum of its proper divisors is 2132, which is less than 4258, making 4258 a deficient number. It is even, not a perfect number, and not abundant.

In standard representations, 4258 is written in binary as 1000010100010 and in hexadecimal as 0x10A2. Its decimal digit sum is 19, and it is not divisible by 3 or 9.

As the product of a prime and 2, 4258 appears in discussions of semiprimes and related divisor-sum properties. It serves as an example in various mathematical explorations of how factorization influences divisor sums and classifications within number theory.

See also: semiprime, deficient number.

---