A conical mound has a base radius of 2 meters and a height of 5 meters. If each cubic meter of grain weighs about 600 kg, how many kilograms does this mound weigh?
一个圆锥谷堆，底面半径是2米，高是5米，如果每立方米的谷子约重600千克，这个谷堆大约重多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/3) * 3.14 * 4 * 5 * 600</gadget>
<output>12_560</output>

<result>12_560</result>