Importance of Number 16

                                               Sixteen 

1.      It can be portioned into 231 ways.

2  It is also a fourth power and a square number.                                                                         

    4² = 2⁴ = 16

3. It is the sum of first four odd numbers.                                                                                      1 + 3 + 5 + 7 = 16

4. It is the only integer with property x^y = y^x where x ≠y                                                               4² = 2⁴

5.      It is the smallest number with exactly 5 divisors 1, 2, 4, 8 and 16.

6.      A number with base 16 is called Hexadecimal. The 16 digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F.

7.      It is the first square number that can be expressed as the sum of two triangular numbers in 2 different ways.         

                                                  

                                            16 = 1 + 15                        and                  16 = 6 + 10

8.      It is the only number that is the perimeter and area of the same square. This was proved by Pythagorean.                             

1	2	3	4
5	6	7	8
9	10	11	12
13	14	15	16

9.      It is the centered Pentagonal number.

10.  The atomic number of Sulphar is 16.

11.  The Chinese has developed a method of counting using the thumb to touch the tip and three joints of each finger. This enabled them to count to 16 on each hand.

12.  In web designing, colours are coded on base16 numbering system. The web coding changes the RGB values (0 – 255) into base 16.

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