33698267/33554432

33698267/33554432, or the sylvisma^{[idiosyncratic term]}, is a small 19-limit comma of about 7.4 cents that is the difference between the stacking of three 323/256 major thirds and an octave. It is notably tempered out in 12edo and arsenic temperament.

Interval information

Ratio	33698267/33554432
Subgroup monzo	2.17.19 [-25 3 3⟩
Size in cents	7.405277¢
Name	sylvisma
Color name	latrinoso 3rd, L19o317o33
FJS name	[math]\displaystyle{ \text{ddd3}^{17,17,17,19,19,19} }[/math]
Special properties	reduced, reduced harmonic
Tenney norm (log2 nd)	50.0062
Weil norm (log2 max(n, d))	50.0123
Wilson norm (sopfr(nd))	158
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Etymology

The name was coined by Zeta Function from the mineral sylvite, which is made of potassium chloride. Chloride is element 17, and potassium is element 19, so the name thus reflects in a roundabout way the prime factors that make up this comma.