28
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There are 0.28 kilometers in 280 meters. 280 meters x 1 kilometer/1000 meters = 0.28 kilometers 1 kilometer = 1000 meters
280
280 x 280 x 280 = 28 x 28 x 28 x 1000 = 21952000
It is: (IX)CCLXXX which means 1000*9+280 = 9,280
A milligram (mg) is equal to one thousandth of a gram. That is, it takes 1000 mg of a substance to equal 1 gram. To convert from grams to milligrams, multiply by 1000: 280 g. = 1000 * 280 mg. = 280,000 mg.