A conical wheat pile has a base circumference of 6.28 meters and a height of 1.2 meters. If each cubic meter of wheat weighs about 500 kilograms, how many kilograms does this pile of wheat weigh?
一圆锥形小麦堆的底面周长为6.28米，高1.2米．如果每立方米小麦约重500千克，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">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 * 1.2 * 500</gadget>
<output>628</output>

<result>628</result>