365 (three hundred [and] sixty-five) is the natural number following 364 and preceding 366.
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|---|---|---|---|---|
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| Cardinal | three hundred sixty-five | |||
| Ordinal | 365th (three hundred sixty-fifth) | |||
| Factorization | 5 × 73 | |||
| Greek numeral | ΤΞΕ´ | |||
| Roman numeral | CCCLXV | |||
| Binary | 1011011012 | |||
| Ternary | 1111123 | |||
| Senary | 14056 | |||
| Octal | 5558 | |||
| Duodecimal | 26512 | |||
| Hexadecimal | 16D16 | |||
365 is a semiprime centered square number. It is also the fifth 38-gonal number.
For multiplication, it is calculated as 
It is the smallest number that has more than one expression as a sum of consecutive square numbers:
There are no known primes with period 365, while at least one prime with each of the periods 1 to 364 is known.
There are 365.2422 solar days in the mean tropical year. Several solar calendars have a year containing 365 days.[1] Related to this, in Ontario, the driver's license learner's permit used to be called "365"[2][3] because it was valid for only 366 days. Financial and scientific calculations often use a 365-day calendar to simplify daily rates.
In the Jewish faith there are 365 "negative commandments".[4] Also, the Bible states that Enoch lived for 365 years before entering heaven alive (see Genesis 5:23–24).
The letters of the deity Abraxas, in the Greek notation, make up the number 365. This number was subsequently viewed as signifying the levels of heaven.[5]