Hecho general: 20700 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 20700 is an uninteresting number.
Trivia: 20700 is a boring number.
Fecha histórica: September 2nd is the day in 1898 that Battle of Omdurman – British and Egyptian troops defeat Sudanese tribesmen and establish British dominance in Sudan.