5-Digit Number Puzzle

A number has five different digits, none of which is 0.

1. The first digit plus the second digit equals the third digit.

2. Two times the third digit, plus the second digit, equals the fifth digit.

3. The second digit times two equals the first.

4. The first digit times four equals the fourth digit.

5. The fourth digit minus the second digit equals the fifth digit.

What is the number?

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