1099311

1099311 is a natural number. In decimal notation it is a seven-digit integer, equal to 1,099,311. It is a composite number, since it factors as 3 × 366,437. Consequently, 1099311 is not prime and not a perfect power of a small integer. The sum of its digits is 24, which confirms its divisibility by 3 but not by 9, so 1099311 is divisible by 3 but not by 9. The number is odd and not divisible by 5.

The square root of 1099311 lies between 1,048 and 1,049; indeed, 1,048^2 = 1,098,304 and 1,049^2 = 1,100,401, so 1099311 is not a perfect square. In modular arithmetic, 1099311 ≡ 3 (mod 4). Its prime factorization begins with 3; the cofactor is 366,437, and further factorization of 366,437 would require additional testing to determine whether it is prime or has other prime factors.

Apart from its basic arithmetic properties, 1099311 does not appear to have a widely recognized mathematical significance. In practice, it can serve as a numeric identifier in databases, catalogs, or systems that use decimal notation, but there is no widely noted historic event or well-known object specifically associated with the number 1099311.