631 (number)
631 is the natural number following 630 and preceding 632. 631 is an odd number. It is the 115th prime number. Its ordinal is 631st.
| ||||
|---|---|---|---|---|
| Cardinal | six hundred and thirty-one | |||
| Ordinal | 631st (six hundred and thirty-first) | |||
| Factorization | 631 | |||
| Roman numeral | DCXXXI | |||
| Binary | 10011101112 | |||
| Ternary | 2121013 | |||
| Quaternary | 213134 | |||
| Quinary | 100115 | |||
| Senary | 25316 | |||
| Octal | 11678 | |||
| Duodecimal | 44712 | |||
| Hexadecimal | 27716 | |||
| Vigesimal | 1BB20 | |||
| Base 36 | HJ36 | |||