25/13

Interval information
Ratio	25/13
Factorization	52 × 13-1
Monzo	[0 0 2 0 0 -1⟩
Size in cents	1132.1¢
Name	lesser tridecimal diminished octave
FJS name	[math]\displaystyle{ \text{A7}^{5,5}_{13} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	8.3443
Weil norm (log2 max(n, d))	9.28771
Wilson norm (sopfr(nd))	23
	https://en.xen.wiki/w/File:Ji-25-13-csound-foscil-220hz.mp3; [sound info]
	Open this interval in xen-calc

25/13, the lesser tridecimal diminished octave, is a 13-limit interval.

Approximation

25/13 is very well approximated in 53edo, being only 0.024 ¢ sharp of 50\53.