Fatto generale: 15312 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 15312 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 15312 is an unremarkable number.
Data storica: December 2nd is the day in 1775 that the USS Alfred becomes the first vessel to fly the Grand Union Flag (the precursor to the Stars and Stripes); the flag is hoisted by John Paul Jones.