13605

13605 is a natural number that follows 13604 and precedes 13606. It is an odd, composite integer.

Its prime factorization is 13605 = 3 × 5 × 907, with 907 being a prime number. Because it is a product of three distinct primes, 13605 is squarefree. The divisors of 13605 are 1, 3, 5, 15, 907, 2721 (3 × 907), 4535 (5 × 907), and 13605 (3 × 5 × 907).

In base representations, 13605 equals 0x3525 in hexadecimal and 11010100100101 in binary. The decimal digits sum to 15, so 13605 is divisible by 15; indeed 13605 ÷ 15 = 907. This also shows 13605 is a Harshad (Niven) number in base 10, meaning it is divisible by the sum of its digits.

As a numeric identifier, 13605 may arise in various mathematical and practical contexts as a specific integer within sequences, counts, or cataloging systems. In the absence of a defined context, it is treated here as a representative composite integer with the properties noted above.