226

226 = 2 x 113.

226 is a centered pentagonal number.

226 has a representation as a sum of two squares: 226 = 1² + 15².

224² and 226² are the squares of two consecutive even numbers, where the squares each use the same digits: 224² = 50176 and 226² = 51076.

226 is 1401 in base 5 and 1014 in base 6.

Radium-226 is a radioactive decay product of uranium-238; radium-226 itself decays to form the inert gas radon-222.

Source: Numeropedia