199001

199001 is a six-digit integer. It equals 199000 plus 1, and lies between 199000 and 199002. It is odd and not prime, since it factors as 11 × 79 × 229. Its digit sum is 20, so it is not divisible by 3. The numerical reverse is 100991, so it is not a palindrome. The divisors of 199001 are 1, 11, 79, 229, 869, 2519, 18091, and 199001. This shows its prime factorization is 11 × 79 × 229, and thus the number is square-free.

In calendrical or coding contexts, six-digit strings such as 199001 can serve as compact identifiers. As a year-month code in YYYYMM format, 199001 could denote a January 1990 entry in some systems, but that usage would depend on a defined convention. In inventory management or database keys, 199001 might function as a batch or item code. Because there is no universally accepted interpretation of 199001 outside a given schema, its meaning is determined by the system that assigns it.

In mathematics, 199001 is primarily noted for its factorization into small primes; there is no widely recognized historical event tied specifically to the number. It is a composite, square-free six-digit number that is the product of three primes.