Properties of the Number 19222

Nineteen Thousand Two Hundred Twenty-Two

Basics

Value: 19221 → 19222 → 19223

Parity: even

Prime: No

Previous Prime: 19219

Next Prime: 19231

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 × 1373

Divisors: 1, 2, 7, 14, 1373, 2746, 9611, 19222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100101100010110

Octal: 45426

Duodecimal: B15A

Hexadecimal: 4b16

Square: 369485284

Square Root: 138.64342753985852

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

Numbers k such that numerator(Bernoulli(2·k)/(2·k)) is different from numerator(Bernoulli(2·k)/(2·k*(2·k-1))). A90495

G.f. A(x) satisfies: A(x) = 1 + x + x² + x³ + x⁴*A(x)². A307971

a(0) = 1, a(n) = 20·n² + 2 for n>0. A10010

a(n) = 686·n + 14. A157366

Triangle read by rows: T(n,k) is the number of k-matchings in the C_n X P₃ graph (C_n is the cycle graph on n vertices and P₃ is the path graph on 3 vertices). A102089

Number of minimum total dominating sets in the n-Goldberg graph. A382657

Row sums of A321625. A321626

30·a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 17. A90891

Sum of lengths of longest unbordered subword, over all binary words of length n. A295499

A digitized pure tuning tone, sampled at standard settings for consumer audio: a(n) = floor(sin(2*π*(440/44100)*n)*32767). A320277