631 (number)

← 630 631 632 →
Cardinalsix hundred thirty-one
Ordinal631st
(six hundred thirty-first)
Factorizationprime
Greek numeralΧΛΑ´
Roman numeralDCXXXI
Binary10011101112
Ternary2121013
Quaternary213134
Quinary100115
Senary25316
Octal11678
Duodecimal44712
Hexadecimal27716
Vigesimal1BB20
Base 36HJ36

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.

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