0x200x21

0x200x21 is a hexadecimal notation. The prefix "0x" indicates that the following characters represent a hexadecimal number. In this case, the hexadecimal number is 20021. Hexadecimal numbers are base-16, meaning they use sixteen distinct symbols, typically 0-9 and A-F, to represent values.

To convert 0x20021 to its decimal (base-10) equivalent, we can use the positional notation of hexadecimal. Starting from the rightmost digit, each position represents a power of 16.

The rightmost digit '1' is in the 16^0 position (which is 1). So, 1 * 1 = 1.

The next digit '2' is in the 16^1 position (which is 16). So, 2 * 16 = 32.

The next digit '0' is in the 16^2 position (which is 256). So, 0 * 256 = 0.

The next digit '0' is in the 16^3 position (which is 4096). So, 0 * 4096 = 0.

The leftmost digit '2' is in the 16^4 position (which is 65536). So, 2 * 65536 = 131072.

Adding these values together: 1 + 32 + 0 + 0 + 131072 = 131105. Therefore, 0x20021 is equal to 131105 in decimal.

Hexadecimal notation is frequently used in computer science and programming, particularly for representing memory addresses, color codes, and data values. Its base-16 system provides a more compact way to represent binary data compared to decimal.