It is 1.11101111*26
26 base 10 = 1 1010 base 2
11010
Written in binary notation, it's 011010.Written in decimal notation, it's 26.
Decimal 23 is 10111 in binary
Decimal 18 is 10010 in binary
Decimal 27 is 11011 in binary
11010
11001 16 + 8 + 1
Decimal 28 is 11100 in binary
Decimal 20 is 10100 in binary
212 (decimal) is 11010100 (binary)