On October 28, 2012, Asia's largest omnidirectional rotatable radio telescope officially "settle down" in Sheshan, Shanghai. This radio telescope is 70m high and weighs about 2,700 tons. It looks like a big pot with a diameter of 65m. If a thin rope is used to go around the "pot mouth" for a week, how many meters of rope are needed at least?
2012年10月28日，亚洲最大的全方位可转动射电望远镜正式"落户"上海佘山．这台射电望远镜高达70m，重约2700吨，形似一个大锅，"锅口"直径为65m．如果用一根细绳绕"锅口"一周，至少需要多少米长的线绳？
<gadget id="calculator">3.14 * 65</gadget>
<output>204.1</output>

<result>204.1</result>