Fatto generale: 830 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 830 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 830 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: April 9th is the day in 1992 that a U.S. Federal Court finds former Panamanian dictator Manuel Noriega guilty of drug and racketeering charges.