Fatto generale: 15982 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 15982 is a boring number.
Trivia: 15982 is an uninteresting number.
Data storica: October 3rd is the day in 1929 that the Kingdom of Serbs, Croats and Slovenes is renamed to Kingdom of Yugoslavia, "Land of the South Slavs".