1999999999998

1999999999998 is a positive integer. In decimal notation it is written as 1,999,999,999,998. It is an even composite number, equal to 2 × 999,999,999,999, i.e., 2 × (10^12 − 1).

Prime factorization and properties: The factorization of 999,999,999,999 is 3^3 × 7 × 11 × 13 × 37 × 101 × 9901, so the full factorization of 1999999999998 is 2 × 3^3 × 7 × 11 × 13 × 37 × 101 × 9901. This shows the number is divisible by 2 and by 3, among other primes. The form 2 × (10^12 − 1) ties the number to the standard factorization of 10^12 − 1, which arises in studies of repunits and cyclotomic factors.

Context and significance: 10^12 − 1 is a common object in number theory for exploring divisibility patterns and the structure of large composite numbers. As 1999999999998 equals 2 × (10^12 − 1), it inherits the divisors of 10^12 − 1 and serves as an example of how even large integers decompose into multiple prime factors. In computing terms, the value comfortably fits within 64-bit integer ranges and has no special constants or widely recognized named properties beyond its factorization.