Fatto matematico: 15204 is an uninteresting number.
Trivia: 15204 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: August 16th is the day in 1927 that the Dole Air Race begins from Oakland, California, to Honolulu, Hawaii, during which six out of the eight participating planes crash or disappear.