0x1A42

0x1A42 is a hexadecimal (base-16) integer literal commonly used in computing and programming. The prefix 0x denotes hexadecimal notation; the digits 1, A, 4 and 2 correspond to values 1, 10, 4 and 2 respectively. Interpreted as a whole number, 0x1A42 equals 6722 in decimal.

As a binary value 0x1A42 is 0001 1010 0100 0010 in 16-bit form. Its octal representation is 015102. In typical 16-bit organization the high byte is 0x1A (26 decimal) and the low byte is 0x42 (66 decimal); on little-endian systems the two bytes would be stored as 0x42 0x1A. The value is even and factors as 2 × 3361, with 3361 being a prime number.

In programming contexts 0x1A42 might appear as a literal for an address, constant, or fixed-size field in protocols and embedded systems. The components 0x1A and 0x42 have separate meanings in some encodings—0x1A is historically used as the ASCII substitute (control-Z) and 0x42 is the ASCII code for the uppercase letter "B"—but 0x1A42 itself has no specific universal semantic beyond its numeric identity. Its representation and interpretation depend on context such as endianness, field size, and application protocol.