Properties of the Number 19213

Nineteen Thousand Two Hundred Thirteen

Basics

Value: 19212 → 19213 → 19214

Parity: odd

Prime: Yes

Previous Prime: 19211

Next Prime: 19219

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 19213

Divisors: 1, 19213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101100001101

Octal: 45415

Duodecimal: B151

Hexadecimal: 4b0d

Square: 369139369

Square Root: 138.61096637712328

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 p such that the decimal digits of p² can be partitioned into two or more nonzero squares. A48646

G.f. A(x) satisfies A(x) = 1 / ((1 - 4·x) * (1 - x·A(x)²)). A349535

Prime(n) and prime(n+2) use the same digits. A69794

a(n) = A000040(A096480(n)). A96481

The initial prime in the first set of n consecutive primes for which p+4 is semiprime. A137625

Primes p such that continued fraction of (1 + sqrt(p))/2 has period 11: primes in A146335. A146356

Primes p = x² + y² such that x - y is a cube greater than one. A282405

Numbers n such that 13ⁿ is the highest power of 13 dividing A240751(n). A286007

Numbers k such that k and k² use only the digits 1, 2, 3, 6 and 9. A136981

Primes congruent to 38 mod 59. A142765