11 (number)

11 (eleven /ɪˈlɛvən/ (audio speaker iconlisten) or /iˈlɛvən/ or ten-one) is a number. It comes between ten and twelve, is an odd number, and is a prime number, after 2, 3, 5, and 7.

10 11 12
Cardinaleleven
Ordinal11th
(eleventh)
Factorizationprime
Prime5th
Divisors1, 11
Greek numeralΙΑ´
Roman numeralXI
Greek prefixhendeca-/hendeka-
Latin prefixundeca-
Binary10112
Ternary1023
Quaternary234
Quinary215
Senary156
Octal138
DuodecimalB12
HexadecimalB16
VigesimalB20
Base 36B36
Hebrew numeralיא


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