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What is the only number equal to the sum of subfactorials of its digits?

Hint: it is below 150000

This fact was discovered by Malachy in 1979.

(No Solution Yet, 1 Comments) Submitted on 2018-02-25 by Ady TZIDON   
Difficulty: 4 of 5 Bonus: Sequence 1 (in Sequences) Rating: 2.40
What are the next 5 digits in the following series?

10101000101000101000

(Solution Posted, 11 Comments) Submitted on 2003-06-27 by Ravi Raja   
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