13 (alƙalami)
(an turo daga 13(adadan))
13 (goma sha uku ko sha uku) alƙalami ne, tsakanin 12 da 14.
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| Cardinal | goma sha uku | |||
Factorization (en)  | prime | |||
| Greek numeral | ΙΓ´ | |||
| Roman numeral | XIII | |||
| Binary | 11012 | |||
| Ternary | 1113 | |||
| Octal (en) | 158 | |||
| Duodecimal system (en) | 1112 | |||
| Hexadecimal (en) | D16 | |||