Each tile covers a square foot. So you need 542, plus some for spoilage and cutting.
542 millimeters = about 21.3 inches. (21.3385827 inches.)
One acre is 43,560 square feet or 4840 square yards. The conversion would be .542 acres.
Cooper weighs 542 lbs. per square foot. So, 542 divided by 1,728 (the number of inches per square foot). One cubic inch of copper weighs 0.31 lbs., or about 5 ounces.
The area of Ogulin is 542 square kilometers.
The area of Xiuzhou District is 542 square kilometers.
1084
The result of adding 542 plus 542 is equal to 1084.
Åmotfors's population density is 542 people per square kilometer.
Emsfors's population density is 542 people per square kilometer.
The population density of Sjulsmark is 542 people per square kilometer.
The positive integer factors of 542 are: 1, 2, 271, 542