Xiaolan added the consecutive even numbers 2, 4, 6, 8, 10, 12, 14, 16, ... one by one, and got the result 2012. When checking the calculation, it is found that a number has been omitted, so what is the missing number?
小兰将连续偶数2、4、6、8、10、12、14、16、…逐个相加，得结果2012．验算时发现漏加了一个数，那么，这个漏加的数是多少．
<gadget id="calculator">45 + 1</gadget>
<output>46</output>

<gadget id="calculator">45 * 46</gadget>
<output>2_070</output>

<gadget id="calculator">2_070 - 2_012</gadget>
<output>58</output>

<result>58</result>