04,14,24,34,40,41,42,43,44,45,46,47,48,49,54,64,74,84,94.... OR 19 Digits
19+4
Pigeons do not have digits like fingers or toes. Instead, they have claws on their feet, typically four on each foot.
If you mean using the digits, then you can do: 3 x 5 + 4 = 19
3721
4!-(4/4+4)=19
The number is 19.
4 x 4.75 = 19
23
19
19
The number is 19.