A company makes sweets. The sweets are put into packets. Here are some facts. 1.47 × 107 sweets are made every day 3.5 × 105 packets of sweets are produced every day The company has 152 machines making the sweets. Each machine operates for 15 hours each day. Calculate the number of sweets made by one machine each hour. Give your answer as an ordinary number correct to the nearest 10.