Back 129 (عدد) Arabic 129 (ədəd) Azerbaijani ۱۲۹ (سایی) AZB 129 (число) Bulgarian Cent vint-i-nou Catalan 129 CDO ١٢٩ (ژمارە) CKB 129 (číslo) Czech 129 (хисеп) CV 129 (αριθμός) Greek
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| Cardinal | one hundred twenty-nine | |||
| Ordinal | 129th (one hundred twenty-ninth) | |||
| Factorization | 3 × 43 | |||
| Divisors | 1, 3, 43, 129 | |||
| Greek numeral | ΡΚΘ´ | |||
| Roman numeral | CXXIX | |||
| Binary | 100000012 | |||
| Ternary | 112103 | |||
| Senary | 3336 | |||
| Octal | 2018 | |||
| Duodecimal | A912 | |||
| Hexadecimal | 8116 | |||
129 (one hundred [and] twenty-nine) is the natural number following 128 and preceding 130.