All good roulette players love numbers. It is a fascination for the numerical, representing a deep-rooted awe for what is believed to be an orderly, precise, yet everchanging reality, found in the endless interaction of countless phenomena, which all can be formulated mathematically.

This fascination usually starts in the early years of childhood and then holds on, or in those cases of other intervening interests, re-emerges at a later age.

I have here a little curiosa about numbers comparative to our immediate reality, presented here with a reference to the numerical range of 0 - 36.

So for all philomath´s here - Enjoy.

0 is the

additive identity.

1 is the

multiplicative identity.

2 is the only even

prime.

3 is the number of spatial dimensions we live in.

4 is the smallest number of colors sufficient to color all planar maps.

5 is the number of

Platonic solids.

6 is the smallest

perfect number.

7 is the smallest number of sides of a

regular polygon that is not

constructible by straightedge and compass.

8 is the largest

cube in the

Fibonacci sequence.

9 is the maximum number of

cubes that are needed to sum to any positive

integer.

10 is the base of our number system.

11 is the largest known

multiplicative persistence.

12 is the smallest

abundant number.

13 is the number of

Archimedean solids.

14 is the smallest even number n with no solutions to

φ(m) = n. (Many mathematicians have tried. All have failed.)

15 is the smallest

composite number n with the property that there is only one

group of order n.

16 is the only number of the form xy = yx with x and y being different

integers.

17 is the number of

wallpaper groups.

18 is the only positive number that is twice the sum of its digits.

19 is the maximum number of 4th powers needed to sum to any number.

20 is the number of

rooted trees with 6 vertices.

21 is the smallest number of distinct

squares needed to tile a

square.

22 is the number of

partitions of 8.

23 is the smallest number of

integer-sided boxes that tile a box so that no two boxes share a common length.

24 is the largest number divisible by all numbers less than its

square root.

25 is the smallest

square that can be written as a sum of 2 positive

squares.

26 is the only positive number to be directly between a

square and a

cube.

27 is the largest number that is the sum of the digits of its

cube.

28 is the 2nd

perfect number.

29 is the 7th

Lucas number.

30 is the largest number with the property that all smaller numbers

relatively prime to it are

prime.

31 is a

Mersenne prime.

32 is the smallest non-trivial 5th power.

33 is the largest number that is not a sum of distinct

triangular numbers.

34 is the smallest number with the property that it and its neighbors have the same number of

divisors.

35 is the number of

hexominoes.

36 is the smallest non-trivial number which is both square and triangular.