The value you've provided, "1FwZXt6EpRT7Fkndzv6K4b4DFoT4trbMrV", is a Bitcoin address (in P2PKH format). It's important to note that a public Bitcoin address is generated from a corresponding private key, but the private key itself is not directly derivable from the public address.
**However**, if you're seeking to represent a private key in hexadecimal (HEX) format, you would need to generate it separately using a Bitcoin wallet or key


