The surface area of Mars is approximately 144,798,500 square kilometers. The equatorial radius is about 3,396 km and the polar radius is 3,376 km.
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30,528 sq km
500 acres is 2.02 square km
600 square kilometers is 231.66 square miles or about 148,260 acres.
35 million hectares = 350,000 square kilometers.
The continent of Asia is 17.21 million sq miles (44.58 million km²).