Fait général: 23730 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 23730 is a boring number.
Culture générale: 23730 is a boring number.
Date historique: December 19th is the day in 1986 that Mikhail Gorbachev, leader of the Soviet Union, releases Andrei Sakharov and his wife from exile in Gorky.