2383

This number is a prime.

+ A left-truncatable prime. [Wood]

+ A prime concatenated from the index of a prime p and p itself, i.e., the 23rd prime is 83. [Loungrides]

+ The number of delegates needed to become the presidential nominee for the Democratic Party of the United States of America. It is exactly half the number of total delegates, plus one. [Jones]

+ 2383 is simultaneously the 354th prime number and the 354th happy number. [Gaydos]

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