A cylindrical cistern has a bottom circumference of 18.84m and a volume of 169.56m**3. Now paint the bottom and surrounding areas of the cistern with waterproof paint. If 5kg of paint is required per square meter, how many kilograms are needed in total? coating?
一个圆柱形蓄水池，底面周长是18.84m，体积是169.56m**3，现将蓄水池的底部和四周涂上防水涂料，如果每平方米需要用5kg涂料，一共大约需要多少千克涂料？
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9</gadget>
<output>28.26</output>

<gadget id="calculator">169.56 / 28.26</gadget>
<output>6</output>

<gadget id="calculator">18.84 * 6</gadget>
<output>113.04</output>

<gadget id="calculator">28.26 + 113.04</gadget>
<output>141.3</output>

<gadget id="calculator">141.3 * 5</gadget>
<output>706.5</output>

<result>706.5</result>