The number 143 in binary is the eight-digit number 10001111.
The digits in a binary number are exponents of 2 rather than 10, so that for an eight-digit number in binary, the digit places represent
128, 64, 32, 16, 8, 4, 2, 1 instead of increasing values of 10.
10001111 = 128 + (0x64) + (0x32) + (0x16) + 8 + 4 + 2 + 1 = 143
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Every decimal number can be represented by a binary number - and conversely.
Decimal 11 = binary 1011
There is no decimal number for the binary number 13 because 13 cannot be a binary number.
The binary equivalent of the decimal number 63 is 111111.
Expressed in decimal, the binary number 111111010 represents 506.