805

805 is the natural number that comes after 804 and before 806. It is an odd composite number. Its prime factorization is 5 × 7 × 23. As a product of three distinct primes, 805 is square-free and has eight positive divisors: 1, 5, 7, 23, 35, 115, 161, and 805.

In numeral systems, 805 is represented as 1100100101 in binary, 0x325 in hexadecimal, and 1445 in octal.

In telecommunications, 805 is an area code used in the Central Coast region of California, covering parts of Santa Barbara, Ventura, and San Luis Obispo counties, including coastal and inland communities.