A conical pile of wheat has a circumference of 62.8 decimeters and a height of 3 meters. If each cubic meter of wheat weighs 680 kilograms, how many kilograms does this pile of wheat weigh?
一个圆锥形小麦堆，底面周长是62.8分米，高3米，如果每立方米小麦重680千克，这堆小麦重多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">62.8 / 10</gadget>
<output>6.28</output>

<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">(1/3) * 3.14 * 1 * 3 * 680</gadget>
<output>2_135.2</output>

<result>2_135.2</result>