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1,590,000 kilograms is about 2,500,000 times as heavy as a Basketball
In other words, it's 2,549,345.43180 times the weight of a Basketball, and the weight of a Basketball is 0.000000392257552670 times that amount.
(NBA official ball standards, Size 7)
A regulation NBA basketball, manufactured by Spalding, is known as a Size 7 ball and weighs 0.623689508750 kilograms. These balls have 4,118 pebbles each with a diameter of 2.5 mm
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