Properties of the Number 19319

Nineteen Thousand Three Hundred Nineteen

Basics

Value: 19318 → 19319 → 19320

Parity: odd

Prime: Yes

Previous Prime: 19309

Next Prime: 19333

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 19319

Divisors: 1, 19319

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101101110111

Octal: 45567

Duodecimal: B21B

Hexadecimal: 4b77

Square: 373223761

Square Root: 138.99280556920922

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primes of the form k² - 2. A28871

Primes of form p² - 2, where p is prime. A49002

Primes of the form p·q + p + q, where p and q are two successive primes. A96342

Numbers k such that (14^k + 5^k)/19 is prime. A128343

a(n) = prime(n)² - 2. A49001

Father primes of order 11. A136080

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically. A207391

Largest prime below prime(n)² (A001248). A54270

Primes of the form XYX, where Y is a single digit. A154270

Primes of the form 4·k-1 such that 8·k-1 and 16·k-1 are also primes. A101791