24 is an American television series produced for the Fox network created by Joel Surnow and Robert Cochran, and starring Kiefer Sutherland as Counter Terrorist Unit ...
24 (twenty-four) is the natural number following 23 and preceding 25. The SI prefix for 10 24 is yotta (Y), and for 10 −24 (i.e., the reciprocal of 10 24) yocto (y).