Is 71,000,000,000,000 square millimeters as big as Philadelphia?
It's about one-fifth as big as Philadelphia
The size of Philadelphia is about 349,900,000,000,000.0000000000000000000 square millimeters.
(a.k.a. Philly, a.k.a. The City of Brotherly Love) (Pennsylvania)
The largest city in Pennsylvania as of 2009 and at one time the second-largest city in the British Empire, Philadelphia measures 349,900,000,000,000.0000000000000000000 square millimeters in total area. The city is known as a center of great historical importance and as the one-time capital of the United States.
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