Properties of the Number 19019

Nineteen Thousand Nineteen

Basics

Value: 19018 → 19019 → 19020

Parity: odd

Prime: No

Previous Prime: 19013

Next Prime: 19031

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 11 × 13 × 19

Divisors: 1, 7, 11, 13, 19, 77, 91, 133, 143, 209

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101001001011

Octal: 45113

Duodecimal: B00B

Hexadecimal: 4a4b

Square: 361722361

Square Root: 137.90939054321137

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

Square pyramidal numbers: a(n) = 0² + 1² + 2² + ... + n² = n*(n+1)*(2·n+1)/6. A330

Multiples of 19 containing a 19 in their decimal representation. A121039

Numbers k such that k and k+1 have 4 distinct prime factors. A140078

29-gonal numbers: a(n) = n*(27·n-25)/2. A255187

Sum of the squared parts of the partitions of n into exactly two parts. A226141

Sum of the squares of the parts in the partitions of n into two distinct parts. A294286

Denominator of the second derivative of the n-th Bernoulli polynomial B(n,x). A366168

a(n) is the denominator of the probability that the free polyomino with binary code A246521(n+1) appears in internal diffusion-limited aggregation on the square lattice. A368387

a(n) = 13·binomial(2n,n-6)/(n+7). A590

a(n) is the number of Dyck paths of semilength n+6 having its first peak at height n+1. A5557