Prime number 19
Interestingness: 10 · Rank #240 of 1000
Visual representations
Representations of 19
ιθʹ
XIX
●●●●
▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
𓎆
𓏹𓏹𓏹𓏹𓏹𓏹𓏹𓏹𓏹
𓏹𓏹𓏹𓏹𓏹𓏹𓏹𓏹𓏹
.--------.
19 in different numeral systems
Number-theory characteristics (7)
Difference of 2 squares
Odious number
Odd
Prime number
Gaussian prime
Deficient
Twin Prime
Base-10 digit properties (1)
These depend on the decimal representation of the number.
Happy number