Fatto generale: 90312 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 90312 is an uninteresting number.
Trivia: 90312 is a boring number.
Data storica: April 7th is the day in 1927 that First distance public television broadcast (from Washington, D.C., to New York City, displaying the image of Commerce Secretary Herbert Hoover).