The road roller is pressed by cylindrical rollers. The roller of a road roller is 1.5 meters long and has a radius of 0.54 meters. Calculated by rolling 16 times per minute, how many square meters can this road roller roll per hour?
压路机是靠圆柱体滚筒压路．一台压路机的滚筒长1.5来，半径是0.54米，以每分钟滚16周计算，这台压路机每小时可压路多少平方米？
<gadget id="calculator">3.14 * 0.54 * 2 * 1.5 * 16 * 60</gadget>
<output>4_883.328</output>

<result>4_883.328</result>