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There are only 1867 different summing equalities for
numbers 1 to 11 where no value is used more than once:
1+2=3, 1+3=4, 2+3=1+4, etc.
1867 is the smallest prime that can be expressed as the sum of distinct Fibonacci numbers in 42 different ways. 1867 is the smallest prime that is the sum of 44 consecutive composite numbers: 1867 = 14 + 15 + 16 + 18 + 20 + ... + 68 + 69 + 70. 1867 = 284th prime + 284th composite: 1867 = 1559 + 308. Concatenating the prime previous to 1867 with itself, is prime, i.e., 18611867 is prime. [Noll] In this emirp year the Dominion of Canada was created by an act of the British Parliament. [Green]
(There is one curio for this number that has not yet been approved by an editor.)
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