There must be exactly one.
Gustaf von Numers's birth name is Gustaf Adolf von Numers.
It is neither because it is a decimal number and only whole numers or integers are expressed as odd or even.
Gustaf von Numers - writer - was born in 1848.
Gustaf von Numers - writer - died in 1913.
Gustaf von Numers was born on March 21, 1848, in Maksamaa, Finland.
Gustaf von Numers died on February 6, 1913, in Kannus, Finland.
There are none.
The number pi starts as 3.141592653... and goes on forever, never ending and never repeating. It has been calculated out to billions of decimal places, without ever ending (and it never will).
2,000,000
6,000,000,000
They are infinite-state which ones.
1, 5, 25.