Fatto generale: 20306 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 20306 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 20306 is an uninteresting number.
Data storica: August 5th is the day in 1965 that the Indo-Pakistani War of 1965 begins as Pakistani soldiers cross the Line of Control dressed as locals.