361818

361,818 is a natural number that lies between 361,817 and 361,819. It is an even and composite number. Its prime factorization is 2 × 3^2 × 20,101, meaning it can also be expressed as 18 × 20,101. The digit sum of 361,818 is 27, which confirms divisibility by 9, and indeed the number is divisible by 18, with a quotient of 20,101. The factor 20,101 is itself a prime number, making the full factorization 2 · 3^2 · 20,101.

As a six-digit decimal, 361,818 is not a palindrome and is not a perfect power. It is divisible by small primes 2 and 3, but its largest prime factor is relatively large (20,101), illustrating how an even number can have a sizable prime component.

In mathematical contexts, 361,818 serves as an example of a composite number with a mixed factorization structure: it combines small prime factors with a comparatively large prime factor. Beyond its arithmetic properties, there are no widely recognized special uses or notable historical associations tied specifically to this number. It stands as a straightforward case for illustrating basic concepts of factorization, divisibility, and digit-sum tests.