Fatto generale: 246 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 246 is _{9}C_{2} + _{9}C_{4} + _{9}C_{6}.
Trivia: 246 is an uninteresting number.
Data storica: September 2nd is the day in 1811 that the University of Oslo is founded as The Royal Fredericks University, after Frederick VI of Denmark and Norway.