There is a conical pile of wheat with a circumference of 25.12 meters and a height of 1.5 meters. If each cubic meter of wheat weighs about 750 kilograms, how many kilograms does this pile of wheat weigh?
有一个圆锥形小麦堆，底面周长为25.12米，高1.5米，如果每立方米小麦约重750千克，则这堆小麦约重多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">25.12 / 3.14 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 1.5 * 750</gadget>
<output>18_840</output>

<result>18_840</result>