The book is now available! 3413
(another Prime Pages' Curiosity)
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+ A kilowatt-hour of electricity can provide 3413 BTU's of heat. [Bobick]

+ 3413 = 11 + 22 + 33 + 44 + 55. [Patterson]

+ The sum of the product of all odd digits (1*3*5*7*9) and the positive even digits concatenated in increasing order (2468). [Silva]

+ The smallest prime formed by concatenating P, S, n, where P and S are the product and the sum of the digits of a zeroless multidigit integer n. Note that n is the smallest emirp. [Loungrides]

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