0x19AF

0x19AF is a hexadecimal literal commonly used in programming to denote a specific numeric value. The 0x prefix indicates that the digits that follow are in base-16 notation.

The hexadecimal value 0x19AF corresponds to the decimal number 6575. This is calculated as 1 × 4096 + 9 × 256 + 10 × 16 + 15 = 6575. In binary, 0x19AF can be represented as 0001 1001 1010 1111 for a 16-bit value; in 32-bit form it appears as 00000000 00000000 00011001 10101111.

In practical use, hex literals like 0x19AF appear in source code for a variety of purposes, including bit masks, memory addresses within low-level programming, or as compact representations of data where hexadecimal grouping aligns with byte boundaries. They are also used in debugging and in situations where a concise, human-readable form of binary data is helpful.

In the context of blockchain technologies such as Ethereum, 0x19AF on its own would not be a valid address, since Ethereum addresses are 20 bytes (40 hexadecimal characters) after the 0x prefix. Short hex values may be components of larger data fields within transactions or smart contract calls, but they do not by themselves identify an account.

See also: hexadecimal notation, decimal, binary, bit masking.