A fairy tale novel has 150 pages, 20 lines per page, and 28 characters per line. How many characters are there in this novel?
一本童话小说共有150页，每页20行，每行28个字，这部小说约有多少字？
<gadget id="calculator">28 * 20 * 150</gadget>
<output>84_000</output>

<result>84_000</result>