Fatto generale: 23009 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 23009 is an unremarkable number.
Trivia: 23009 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: December 29th is the day in 1890 that United States soldiers kill more than 200 Oglala Lakota people with four Hotchkiss guns in the Wounded Knee Massacre.