Convert (10101) to binary number.
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Explanation:
(10101)2 = (21)
Write down the binary number:
10101
Step 2: Multiply each digit of the binary number by the corresponding power of two:
1x24 + 0x23 + 1x22 + 0x21 + 1x20
Step 3: Solve the powers:
1x16 + 0x8 + 1x4 + 0x2 + 1x1 = 16 + 0 + 4 + 0 + 1
Step 4: Add up the numbers written above:
16 + 0 + 4 + 0 + 1 = 21.
So, 21 is the decimal equivalent of the binary number 10101.
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