Properties of the Number 19231

Nineteen Thousand Two Hundred Thirty-One

Basics

Value: 19230 → 19231 → 19232

Parity: odd

Prime: Yes

Previous Prime: 19219

Next Prime: 19237

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 19231

Divisors: 1, 19231

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101100011111

Octal: 45437

Duodecimal: B167

Hexadecimal: 4b1f

Square: 369831361

Square Root: 138.67588110410549

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

Number of positive solutions to x²+y²+z² <= n². A253663

Primes of the form 2·n² + 90·n + 43. A217621

a(n) is the least integer k > 2 such that the remainder of -k modulo p is strictly increasing over the first n primes. A306612

∑_i=0..n ∑_j=0..n (i AND j), where AND is the binary logical AND operator. A224924

Number of partitions of prime(n) into prime parts smaller than itself. A168470

The left Aurifeuillian factor of k^k + 1 for k congruent to 0, 2 or 3 (mod 4) and squarefree. A230377

Smallest number k such that the continued fraction expansion of sqrt(k) contains n distinct numbers. A187142

Value of prime number D for incrementally largest values of minimal·satisfying the equation x² - D·y² = 2. A336786

Numbers p from A001125 such that 2·p-3 is prime. A63939

Primes congruent to 16 mod 61. A142814