- 186 (number)
186 is the
natural number following 185 and preceding 187.186 is a
sphenic number , so theMöbius function returns -1 (and theMertens function returns -4).There is no integer with exactly 186 coprimes less than it, thus 186 is a
nontotient , nor is it ever the difference between an integer and the total of coprimes below it, thus it is also anoncototient .There are 186 degree-11
irreducible polynomial s over aGalois field with 2 elements OEIS|id=A001037.186 is a 14-
gonal number and a 63-gonal number.186 is also a 6 cylinder Holden engine (L6),that was first used in the "HR" series Holden. It is widely regarded as one of Holden's greatest engines.
For the year 186 AD, see
186 .
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