249887

249,887 is a natural number that immediately follows 249,886 and precedes 249,888. It is an odd integer and is not divisible by 3 or 5. The sum of its decimal digits is 38, which places it at 2 modulo 9. It is divisible by 11, as shown by the alternating-sum test for 11, and can be expressed by its prime factorization as 249,887 = 11 × 22,717.

The cofactor 22,717 is a prime number, giving the complete prime factorization of 249,887 as 11 × 22,717. Consequently, the positive divisors of 249,887 are 1, 11, 22,717, and 249,887 itself. The number is not a prime and is not a perfect square.

In practical terms, 249,887 may appear as an identifier or data point in numerical datasets, catalogs, or sequences. It does not have widely recognized mathematical constants, theorems, or historical associations that distinguish it beyond its basic arithmetic properties.

See also:

- Composite number

- Prime number

- Factorization

- Natural numbers