Numeric Value: 9

The folowing table expresses '9' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.

BaseDR4DR3DR2DR1
21001 101
3 100 1
4  213
5  14,101
6  134
7  123
8  112
9  101
10   9
11   9
12   9
13   9
14   9
15   9
16   9

Math World

Factors: 32

9 is in the Pythagorean Triple: (9, 40, 41).

A 'Nonagon (or Enneagon)' is a 'regular polygon' with 9 sides.

Physical World

9 is the atomic weight of Fluorine (F).