The circumference of the bottom of a conical grain pile is 12.56 meters, the height is 3 meters, and the weight of rice per cubic meter is 500 kilograms. How many kilograms does this pile of rice weigh?
一个圆锥形谷堆的底面周长是12.56米，高是3米，每立方米的稻谷重500千克，这堆稻谷重多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12.56 / 3.14 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">500 * (1/3) * 3.14 * 4 * 3</gadget>
<output>6_280</output>

<result>6_280</result>