Properties of the Number 19223

Nineteen Thousand Two Hundred Twenty-Three

Basics

Value: 19222 → 19223 → 19224

Parity: odd

Prime: No

Previous Prime: 19219

Next Prime: 19231

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 47 × 409

Divisors: 1, 47, 409, 19223

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100101100010111

Octal: 45427

Duodecimal: B15B

Hexadecimal: 4b17

Square: 369523729

Square Root: 138.6470338665779

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

Expansion of e.g.f.: 1/(exp(x) - x). A89148

Composite numbers generated by the Euler polynomial x² + x + 41. A145292

Semiprimes generated by the Euler polynomial x² + x + 41. A228183

Prime-generating polynomial: a(n) = 16·n² - 300·n + 1447. A181973

Number of compositions of n whose standard factorization into Lyndon words has all distinct weakly increasing factors. A299027

Numerator of Laguerre(n, -3). A160613

a(n) = 20·n² + 3. A167573

Numerators of the partial alternating sums of the reciprocals of the alternating sum of divisors function (A206369). A379621

Numbers k such that 2^k - 127 is prime. A169716

Positions of 4-digit terms in the continued fraction for π (3 is at position 0). A48959