Starting from 1, write on the blackboard in the order of 1, 2, 3, 4, 5, ..., until a certain number is erased, and the average number of the remaining numbers is (590/17), How much was erased?
从1开始，按1，2，3，4，5，…，的顺序在黑板上写到某数为止，把其中一个数擦掉后，剩下的数的平均数是(590/17)，擦掉的数是多少？
<gadget id="calculator">12 / 17</gadget>
<output>12/17 = around 0.705882</output>

<gadget id="calculator">34 + (12/17)</gadget>
<output>590/17 = around 34.705882</output>

<gadget id="calculator">68 * (590/17)</gadget>
<output>2_360</output>

<gadget id="calculator">2_415 - 2_360</gadget>
<output>55</output>

<result>55</result>