In the following, write the binary number in base 10.
10101
The binary number 10101 is equal to 21 in base 10.
To convert the binary number 10101 to base 10, you can use the following steps:
Step 1: Start from the rightmost digit of the binary number.
Step 2: Assign a power of 2 to each digit, starting from 0 for the rightmost digit and increasing by 1 for each subsequent digit.
Step 3: Multiply each digit by its corresponding power of 2.
Step 4: Add up the results from step 3.
Let's calculate:
1 * 2^0 = 1
0 * 2^1 = 0
1 * 2^2 = 4
0 * 2^3 = 0
1 * 2^4 = 16
Add up the results:
1 + 0 + 4 + 0 + 16 = 21
Therefore, the binary number 10101 is equal to 21 in base 10.