256/181

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Interval information

Ratio	256/181
Subgroup monzo	2.181 [8 -1⟩
Size in cents	600.1849¢
Names	octave-reduced 181st subharmonic, utonal quasi-tempered tritone
Color name	181u5
FJS name	[math]\displaystyle{ \text{d5}_{181} }[/math]
Special properties	reduced, reduced subharmonic
Tenney height (log2 nd)	15.4998
Weil height (log2 max(n, d))	16
Wilson height (sopfr(nd))	197
Harmonic entropy (Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])	~4.22648 bits
Open this interval in xen-calc

256/181 is the octave-reduced 181st subharmonic. It can be described as a utonal quasi-tempered tritone, measuring 600.185 cents.

Approximation

256/181 is a fraction of a cent sharp of a semioctave in even equal temperaments (1\2). It is very close to 1623\3245, differing by only 3.565 × 10^-5 cents.

256/181 differs from its octave complement 181/128 by 32768/32761, measuring ~0.37¢. For edos up to 3244, both 181/128 and 256/181 are equated if and only if the edo is an even number.

See also

• 181/128 – its octave complement