Changbai Mountain Tianchi is located in the Changbai Mountain Nature Reserve in the southeast of Jilin Province. It is the deepest lake in China. Tianchi is about 5 kilometers long from north to south, and about 3 kilometers wide from east to west. How many hectares does Changbai Mountain Tianchi have?
长白山天池坐落在吉林省东南部长白山自然保护区内，是中国最深的湖泊．天池南北长约5千米，东西宽约3千米．长白山天池的面积约是多少公顷？
<gadget id="calculator">5 * 3 * 1 * 100</gadget>
<output>1_500</output>

<result>1_500</result>