Fatto generale: 19783 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 19783 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 19783 is a boring number.
Data storica: February 28th is the day in 1954 that the first color television sets using the NTSC standard are offered for sale to the general public.