Numeric Value: 689

The folowing table expresses '689' in various number bases. 'DR_x' shows the result of 'digit reducing' resulting in an X-digit long number.

Base	DR₁₀	DR₉	DR₈	DR₇	DR₆	DR₅	DR₄	DR₃	DR₂	DR₁
2	1010110001							101	10	1
3					221112			100		1
4						22301			20	2
5						10224			14,10	1
6							3105		13	4
7							2003			5
8							1261		12	3
9								845	18,10	1
10								689	23	5
11								577	18	9
12								495	16	7
13								410		5
14								373		D
15								30E	12	3
16								2B1		E

Math World

Factors: 13 * 53

689 is in the Pythagorean Triples: (111, 680, 689), (400, 561, 689), (689, 1320, 1489).

689 is the 13th Strobogrammatic number.

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