| ||||
|---|---|---|---|---|
| Cardinal | nine thousand nine hundred ninety-nine | |||
| Ordinal | 9999th (nine thousand nine hundred ninety-ninth) | |||
| Factorization | 32× 11 × 101 | |||
| Greek numeral | ,ΘϠϞΘ´ | |||
| Roman numeral | IXCMXCIX | |||
| Binary | 100111000011112 | |||
| Ternary | 1112011003 | |||
| Quaternary | 21300334 | |||
| Quinary | 3044445 | |||
| Senary | 1141436 | |||
| Octal | 234178 | |||
| Duodecimal | 595312 | |||
| Hexadecimal | 270F16 | |||
| Vigesimal | 14JJ20 | |||
| Base 36 | 7PR36 | |||
9999 is the natural number after 9998 and before 10,000.