0b111000010101

0b111000010101 is a binary literal that represents the 12-bit pattern 111000010101. The 0b prefix is a common convention in programming languages to denote base-2 notation, distinguishing the value from decimal or hexadecimal literals.

As an unsigned value, 111000010101 equals decimal 3605 and hexadecimal 0xE15. This follows from the bit weights of a 12-bit number: 2^11 + 2^10 + 2^9 + 2^4 + 2^2 + 2^0, which sums to 2048 + 1024 + 512 + 16 + 4 + 1 = 3605.

If interpreted as a signed 12-bit two’s complement value, the most significant bit is 1, indicating a negative number. In that interpretation, the value would be -491, since 4096 − 3605 = 491 and the sign bit denotes a negative value in a 12-bit width.

In practice, 0b111000010101 is used as a literal in code to specify a fixed bit pattern for purposes such as bitwise operations, masks, or compact data encoding. The exact numeric value depends on whether the environment treats it as unsigned (common in many languages) or applies sign interpretation within a fixed width. The 0b prefix is supported in various languages, including Python, JavaScript, Java, and other languages that offer binary literals, making this pattern a straightforward example of base-2 notation in source code.