245

245 is an integer in the decimal system. Its prime factorization is 5 × 7², making it an odd composite number. The positive divisors of 245 are 1, 5, 7, 35, 49, and 245. In decimal notation it is written simply as 245.

In common numeral representations, 245 converts to 11110101 in binary, 365 in octal, and F5 in hexadecimal. In Roman numerals, 245 is written as CCXLV.

In color terminology, 245 can appear as a channel value in an 8-bit RGB color model. For example, the color with RGB components (245, 245, 245) corresponds to the hex color #F5F5F5, a very light gray near white.

Historically, the year 245 CE falls within the period of the Roman Empire commonly associated with the Crisis of the Third Century, a era marked by political instability and various external pressures on the empire.

Summary: 245 is a three-digit, odd composite number with factors 5 and 7². It has multiple base representations (binary 11110101, octal 365, hexadecimal F5, Roman CCXLV) and appears in contexts ranging from mathematics and computing to historical year references and color codes.