0b1111011111011

0b1111011111011 is a binary literal used in programming to denote a base-2 integer. The prefix 0b signals that the following digits are in binary form. The sequence consists of 13 bits, starting with the most significant bit on the left.

It represents the unsigned integer 7931 in decimal. In hexadecimal, the same value is 0x1EFB, since grouping the bits into four-bit nibbles yields 0001 1110 1111 1011, which corresponds to 1 E F B.

The bit-length is 13; any leading zeros would not change the value. If treated as a signed value using two's complement with 13 bits, the most significant bit would indicate a negative number, though in most programming contexts the literal is interpreted as an unsigned or standard int value.

Usage and context: Binary literals appear in languages such as Python and C++14 and later, and are commonly used to specify exact bit patterns for masks, flags, and low-level hardware interfacing. The particular pattern 1111011111011 corresponds to 0x1EFB in hexadecimal and 7931 in decimal.