0xC40

0xC40 is a hexadecimal literal formed by the 0x prefix indicating hexadecimal notation followed by the hexadecimal digits C40. In base-16, C40 equals 3136 in decimal.

Such literals are common in programming languages including C, C++, JavaScript, Python, and Rust, where they encode numeric constants, bitmasks, or memory addresses.

In blockchain contexts, 0x-prefixed strings denote hexadecimal data such as contract addresses, transaction data, or public keys. An exact string 0xC40 is not a standard address, since Ethereum addresses are 40 hex characters after 0x; 0xC40 would be a fragment rather than a full address. Therefore, while 0xC40 can appear in examples and tutorials, it is not by itself a recognized network identifier.

As a practical note, 0xC40 illustrates how hexadecimal notation is used across different domains: it represents a concrete numeric value and serves as a generic example of how hex strings are formatted and parsed in code, documentation, and debugging contexts.