Central Paris is divided into 20 ARRONDISSEMENTS. As Paris postcodes begin with 75, you will gather that 75019 is the 19th Arrondissment. The cebtral point of the 19th is 4km from Notre Dame.
Just over 30 mins by tube :)it can be 45 or an hour or an hour and a half if there r protests or a traffic jam.
The flight distance from Paris, France to Oman is:3,548 miles / 5,711 km
The flight distance from Paris, France to Montreal, Canada is:3,430 miles / 5,521 km
The flight distance from Paris, France to Netherlands is:292 miles / 471 km