It always helps to know the context of the object to be decoded (or where it came from).Trying ASCII and EBCDIC conversion web sites, a sensible result for 0x636869636b656e is the ASCII encoding for the word "chicken". As a decimal number, it would be 27980824543192430 which has no significant meaning. It could also be a hexadecimal representation of a floating point number using a standard encoding (such as IEEE) or some weird personal definition for the mantissa and exponent size and interpretation.As for the Njg2ZjZlNjU3OTYzNmY2ZDYy, there are very many ways that the code could have been generated and decoding it can get complicated if it is not something simple as character substitution or bit shifting. Additionally, if it is an encrypted password belonging to another person, decoding would be a disservice to the password owner.