8180

8180 is an integer in the decimal system. It is even and composite. Its prime factorization is 2^2 × 5 × 409. Consequently, its positive divisors are 1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, and 8180.

In common representations, 8180 equals 0x1FF4 in hexadecimal, 0o17764 in octal, and its binary form is 0001 1111 1111 0100. The sum of digits is 17, so 8180 is not divisible by 3 or 9, and it is not a Harshad number in base 10.

The number is used as a generic identifier in various contexts, such as catalog numbers, model identifiers, or product codes. In theoretical contexts, it may be referenced when examining properties of integers of the form 2^2 × 5 × p with p prime, where p = 409 here.

As a calendar reference, 8180 is a year in the Gregorian system only if used in a far-future or theoretical context; without a specified era, it is simply a numeral. The number appears in no widely recognized mathematical constants or well-known sequences by its own.