Aliens numbering system

Number Theory Level pending

In a parallel universe, instead of using the decimal system, aliens use exactly the set of 26 letters of the English alphabet, \(\{ A, B, C, … Z\}\). To them, A denotes 0, B denotes 1, … and Z denotes 25. All other numbers like 26, 27, ...,etc. can be represented in the aliens' numbering system.

The serial number \(CZP\) was written on one of their spaceships.

Find the equivalent decimal value of that number.

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