Back 49 (ахыԥхьаӡара) Abkhazian 49 (عدد) Arabic 49 (ədəd) Azerbaijani ۴۹ (سایی) AZB 49 (число) Bulgarian ༤༩ (གྲངས་ཀ།) Tibetan Quaranta-nou Catalan 49 CDO ٤٩ (ژمارە) CKB 49 (číslo) Czech
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| Cardinal | forty-nine | |||
| Ordinal | 49th (forty-ninth) | |||
| Factorization | 72 | |||
| Divisors | 1, 7, 49 | |||
| Greek numeral | ΜΘ´ | |||
| Roman numeral | XLIX | |||
| Binary | 1100012 | |||
| Ternary | 12113 | |||
| Senary | 1216 | |||
| Octal | 618 | |||
| Duodecimal | 4112 | |||
| Hexadecimal | 3116 | |||
49 (forty-nine) is the natural number following 48 and preceding 50.