Fatto generale: 9830 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 9830 is an unremarkable number.
Trivia: 9830 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: November 29th is the day in 1394 that the Korean king Yi Seong-gye, founder of the Joseon Dynasty, moves the capital from Kaesŏng to Hanyang, today known as Seoul.