There are 16 classes in a certain school, with an average of 45 students in each class. Each student can collect 2 kg of waste paper per semester. How many kg of waste paper can the students in the school collect in total?
某校有16个班，平均每班45人，每个学生每学期可收集废纸2千克，全校学生一共可以收集多少千克废纸？
<gadget id="calculator">16 * 45 * 2</gadget>
<output>1_440</output>

<result>1_440</result>