The terracotta warriors and horses in Shaanxi are known as "one of the eight man-made wonders of the world". Among them, the infantry terracotta warriors account for 40% of the total number of terracotta warriors. Other terracotta warriors are 1,600 more than the infantry terracotta warriors. How many are the total number of infantry terracotta warriors in Shaanxi?
陕西的兵马俑被称作"世界八大人造奇迹之一"，其中步兵陶俑占陶俑总数的40%，其它陶俑比步兵陶俑多1600件，陕西的步兵陶俑的总数是多少件？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1_600 / (1/5)</gadget>
<output>8_000</output>

<gadget id="calculator">8_000 * (2/5)</gadget>
<output>3_200</output>

<result>3_200</result>