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Is 0.680 pounds as heavy as The Sears Tower?

It's about 0.000000002 times as heavy as The Sears Tower
Flag of The US
The weight of The Sears Tower is about 444,900,000 pounds.
(officially "Willis Tower" as of 2009) (Chicago, Illinois)
The Willis Tower weighs approximately 444,900,000 pounds. The outer wall surface of the Tower is covered with black anodized aluminum panels which would total 110,000 sq. m (28 acres) if laid out together.
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