1111111001101b

1111111001101b is a binary numeral literal, with the trailing b indicating base-2. The digits are 13 bits long.

Its value in decimal is 8141. In hexadecimal, it corresponds to 0x1FCD. The binary string can be verified by summing powers of two: 2^12 + 2^11 + 2^10 + 2^9 + 2^8 + 2^7 + 2^6 + 2^3 + 2^2 + 2^0 = 8141.

The pattern consists of seven consecutive 1 bits, followed by two 0 bits, then 1101. The number is odd and not a power of two. If padded to 16 bits, it would be 0001 1111 1100 1101.

In computing, such notations appear in various contexts as binary literals. Some languages use a prefix, such as 0b1111111001101, while others (notably hardware description or symbolic contexts) may use a suffix like b, or a form such as 13'b1111111001101 in Verilog. The exact syntax depends on the language or tool, but the underlying meaning remains the same: it denotes the binary value represented by the digit sequence.

As an example of a binary constant, 1111111001101b illustrates how a bit string encodes a specific integer and how different numeral systems (binary, hexadecimal, decimal) relate to one another.