Properties of the Number 19199

Nineteen Thousand One Hundred Ninety-Nine

Basics

Value: 19198 → 19199 → 19200

Parity: odd

Prime: No

Previous Prime: 19183

Next Prime: 19207

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 73 × 263

Divisors: 1, 73, 263, 19199

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101011111111

Octal: 45377

Duodecimal: B13B

Hexadecimal: 4aff

Square: 368601601

Square Root: 138.56045611934164

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

a(n) = 12·n² - 1. A158463

Riordan array (s(x),x·S(x)) where s(x) is the g.f. of the little Schroeder numbers A001003, and S(x) is the g.f. of the large Schroeder numbers A006318. A186826

Pisot sequence T(3,13), a(n) = floor( a(n-1)²/a(n-2) ). A10920

Numbers using only digits 1 and 9. A284294

a(n)² is the end of the first occurrence of n consecutive perfect powers, all of which are squares with exponents equal to 2 (A111245). A340664

Pisot sequence E(3,13): a(n) = floor(a(n-1)²/a(n-2) + 1/2). A10903

Denominators of continued fraction convergents to sqrt(761). A42467

a(n) gives the odd leg of the second of the two Pythagorean triangles with hypotenuse A080109(n) = A002144(n)². This is the larger of the two possible odd legs. A253804

a(n) = 48·n² - 1. A65532

Expansion of (1-x)²/(1-5·x+3·x²). A95934