366 (number)

366 is a natural number between 365 and 367.

← 365 366 367 →
Cardinalthree hundred sixty-six
Ordinal366th
(three hundred sixty-sixth)
Factorization2 × 3 × 61
Greek numeralΤΞϚ´
Roman numeralCCCLXVI
Binary1011011102
Ternary1111203
Quaternary112324
Quinary24315
Senary14106
Octal5568
Duodecimal26612
Hexadecimal16E16
VigesimalI620
Base 36A636

While a common year contains 365 days, a leap year contains 366 days instead of the usual 365 to keep calendars synchronized with the Earth's orbit around the Sun.

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