693

693 = 3 x 3 x 7 x 11.

693 is 1010110101 in base 2 (binary). It is 3113 in base 6, 414 in base 13, and 313 in base 15.

693 has the representation 693 = 3⁶ - 36.

A primitive Pythagorean triangles of sides (693, 1924, 2045) has area 666,666.

693 is the number of sections in Ludwig Wittgenstein's Philosophical Investigations.

Source: Numeropedia