3604

3604 = 2 x 2 x 17 x 53.

3604 and its reversal (4063) are each multiples of 17 (A062906 and A062915).

3604 has two representations as a sum of two squares: 3604 = 2² + 60² = 30² + 52².

3604 is a divisor of 83⁸ - 1.

3604 is 11221111 in base 3. It is 103404 in base 4 and 24404 in base 5. It is 2104 in base 12 and 1104 in base 15.

3604 is the number of ways to cover (without overlapping) a ring lattice (necklace) of 36 sites with molecules that are 7 sites wide (A058366).

Source: On-Line Encyclopedia of Integer Sequences