Missing number sense at the b.z.

On September 21st 2015, the Berlin local newspaper b.z. published an article on a so-called
"gebetomat" (pray-o-mat).

It is a small booth where you can listen to prayers and chants of the religion of your choice. Sounds like an interesting art project, I really want to have a look when I am near it.

However, the author exhibits a missing number sense when he begins his article with "Berlin's smallest house of prayers has only 83 square centimeters." He erred on an order of magnitude.