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%I #11 Sep 08 2022 08:46:17
%S 4,0,2,8,7,4,1,1,5,7,7,8,9,8,8,7,7,8,1,8,1,8,7,3,3,2,9,0,7,1,5,9,1,7,
%T 6,7,7,2,2,4,3,8,5,0,6,8,9,1,6,2,2,4,2,0,0,4,1,0,2,9,9,6,3,5,7,8,6,9,
%U 4,5,9,5,2,4,0,8,8,7,4,0,0,8,6,7,6,3,9,8,6,1,4,6,1,4,6,6,5,3,7,1,0,3,8,3,3
%N Decimal expansion of 2^23209 - 1, the 26th Mersenne prime A000668(26).
%H Arkadiusz Wesolowski, <a href="/A275983/b275983.txt">Table of n, a(n) for n = 6987..13973</a>
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Mersenne_prime">Mersenne prime</a>
%F 2^A000043(26) - 1.
%e 40287411577898877818187332907159176772243850689162242004102996357869459...
%t First@RealDigits@N[2^23209 - 1, 100] (* _G. C. Greubel_, Aug 15 2016 *)
%o (Magma) Reverse(Intseq(2^23209-1))[1..105];
%o (PARI) eval(Vec(Str(2^23209-1)))[1..105]
%Y Cf. A169684 = A000668(11), A169681 = A000668(12), A169685 = A000668(13), A204063 = A000668(14), A248931 = A000668(15), A248932 = A000688(16), A248933 = A000668(17), A248934 = A000668(18), A248935 = A000668(19), A248936 = A000668(20), A275977 = A000668(21), A275979 = A000668(22), A275980 = A000668(23), A275981 = A000668(24), A275982 = A000668(25), A275984 = A000668(27).
%K nonn,cons,easy,fini,full
%O 6987,1
%A _Arkadiusz Wesolowski_, Aug 15 2016