241

241 is a natural number that comes after 240 and before 242. In mathematics, it is an odd prime number and the 53rd prime.

It is prime because it has no divisors other than 1 and itself, with sqrt(241) ≈ 15.5.

Calendar note: the 241st day of a common year is August 29; in leap years it is August 28.

In computing and encoding: the decimal 241 corresponds to hexadecimal 0xF1; in ISO/IEC 8859-1 (Latin-1), 0xF1 encodes the character 'ñ'.

In international dialing: +241 is the country calling code for Gabon.

In nuclear science: Americium-241 is a radioactive isotope with mass number 241, used in smoke detectors; its half-life is about 432 years.