160

160 is the natural number that comes after 159 and before 161. In mathematics, it is an even composite number with prime factorization 2^5 × 5. It has 12 positive divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, and 160. In numeral systems, 160 in decimal is written as A0 in hexadecimal, 240 in octal, and 10100000 in binary. In Roman numerals it is CLX. In Unicode and related character encodings, the decimal value 160 corresponds to the non-breaking space, assigned to Unicode code point U+00A0 (and to the Latin-1/ISO-8859-1 encoding). In geometry, the interior angle of a regular polygon with 18 sides is 160 degrees, while each exterior angle is 20 degrees. The number 160 also appears in various applications as a round, base-related value, such as in scales or measurement sets that use factors of 2 and 5. As a year, 160 CE or 160 AD is a point in ancient history, often used as a reference in chronology, though specific events vary by region. Overall, 160 is a small, well-defined integer with several standard representations and standard mathematical properties.