365 (number)
title: "365 (number)" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["integers"] topic_path: "general/integers" source: "https://en.wikipedia.org/wiki/365_(number)" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::data[format=table title="Infobox number"]
| Field | Value |
|---|---|
| number | 365 |
| :: |
| number = 365 365 (three hundred [and] sixty-five) is the natural number following 364 and preceding 366.
Mathematics
365 is a semiprime centered square number. It is also the fifth 38-gonal number.
For multiplication, it is calculated as 5 \times 73. Both 5 and 73 are prime numbers.
It is the smallest number that has more than one expression as a sum of consecutive square numbers:
:365 = 13^2 + 14^2 :365 = 10^2 + 11^2 + 12^2
Timekeeping
There are 365.2422 solar days in the mean tropical year. Several solar calendars have a year containing 365 days. Related to this, in Ontario, the driver's license learner's permit used to be called "365" because it was valid for only 366 days. Financial and scientific calculations often use a 365-day calendar to simplify daily rates.
References
References
- (2000). "The Kingdom of Infinite Number". W. H. Freeman & Company.
- "An American's Guide to Canada: Canadianisms".
- (7 September 1993). "Legislative Assembly of Ontario. Hansard".
::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::