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How was the hex number of the rdif card created?

I needed to advise. I have a RFID card on which 0004550854 is written. I know this number is decadic. In the hexadecimal system, this number is 4570C6. I have two cards of these cards and each of them lists something different to me. The first lists 24002AE036 and the other 42004570C6B1. Could anybody explain how these numbers were created? I'm trying to figure it out for several days and without success :(

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