\( 1 \leftarrow \begin{array}{l}\text { Express the number in scientific notation. } \\ 1,620,000,000 \\ 1,620,000,000=\square \\ \text { (Use the multiplication symbol in the math palette as needed.) }\end{array} \)

1,620,000,000 can be expressed in scientific notation as \( 1.62 \times 10^9 \). This format highlights the significant figures while simplifying the expression of large numbers, making them easier to read and manipulate, especially in scientific contexts. Additionally, scientific notation is not just for math enthusiasts! You encounter it in everyday life, especially in fields like astronomy (think about the distance between stars) and when dealing with data on a massive scale, like population statistics. It allows for easier comparison and calculation, ensuring that even astronomical numbers can be understood at a glance!