33 Mathematically

Thirty Three (33)
1. It is the smallest odd repdigit that is not a prime number.

2. It is the sum of first four factorials.
33 = 1! + 2! + 3! + 4!

3. It can be partioned in 10143 ways.

4. It is the smallest member of triplets of successive semi primes. A semi prime is a number with only two
factors.

5. It is the largest positive integer that cannot be expressed as a sum of different triangular numbers.

6. It is a palindrome number on base 10 and also on base 2.
(33)10 = (100001)2

7. The atomic number of Arsenic is 33.

8. On Newtonian scale, it is the temperature on which water boils.

9. Any integer greater than 33 can be written as the sum of 5 non- zero squares.

10. It is a 3rd 12-gonal number

11. It is the number of Perfect graphs with 3 vertices.

12. The Sagrada Familia cathedral in Barcelona designed by Antoni Gaudí is a mathematician’s dream .The cathedral also contains a Magic Square — an arrangement of numbers that equal the same amount in every column, row, and diagonal. The magic number in Sagrada Familia’s case is 33, which alludes to multiple religious symbols. For example, Jesus performed 33 recorded miracles, and most Christians believe he was crucified at 33 years old in 33 A.D

Dr Rajesh Thakur