13321406

13321406 is a positive integer. It factors as 2 × 7 × 951,529, which means it is divisible by 14 and has a cofactor of 951,529.

Divisibility and digit properties: The sum of its decimal digits is 20, so the number is not divisible by 3 or 9. The last digit is 6, indicating evenness; hence it is divisible by 2 and, as noted, by 7 (and thus by 14). It is not divisible by 5. The number lies between 10,000,000 and 99,999,999, placing it in the seven- to eight-digit range of integers.

Prime factorization: The exact factorization currently known is 13321406 = 2 × 7 × 951,529. Whether 951,529 is prime affects whether this is the complete prime factorization; if 951,529 is composite, it would factor further. In any case, the product 2 × 7 × 951,529 fully reconstructs the original number.

Context and usage: There is no widely recognized mathematical constant or famous sequence uniquely identified with the number 13321406. It is primarily encountered as an ordinary example of an eight-digit integer in arithmetic, number theory demonstrations, or data sets.