Properties of the Number 22219

Twenty-Two Thousand Two Hundred Nineteen

Basics

Value: 22218 → 22219 → 22220

Parity: odd

Prime: No

Previous Prime: 22193

Next Prime: 22229

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 17 × 1307

Divisors: 1, 17, 1307, 22219

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011011001011

Octal: 53313

Duodecimal: 10A37

Hexadecimal: 56cb

Square: 493683961

Square Root: 149.06039044628858

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

For k in {2,3,...,9} define a sequence as follows: a(0)=0; for n>=0, a(n+1)=a(n)+1, unless a(n) ends in k, in which case a(n+1) is obtained by replacing the last digit of a(n) with the digit(s) of k². This is k(4). A237341

Rectangular table, read by antidiagonals, where the g.f.s of row n, R(x,n), satisfy: R(x,n+1) = R(G(x),n) for n>=0 and x·R(x,0) = G(x) = x + x·G(G(x)) is the g.f. of A030266. A128325

a(n) = ∑_i=0..n digsum₈(i)⁴, where digsum₈(i) = A053829(i). A231683

Consecutive states of the linear congruential pseudo-random number generator 20403·s mod 2¹⁵ when started at s=1. A384196

a(n) = 42·n² + 1. A158604

Numerators of continued fraction convergents to sqrt(114). A41206

Table of elementary symmetric functions a_k(1,2,5,6,...,n+2) (no 3,4). A196846

Composite numbers in A381019 which are immediately followed by another composite number, in order of their appearance. A379810

G.f. satisfies A(x) = A(x²) - A(x³)/A(-x²). A385908

The main diagonal in the table of coefficients of iterations of G(x), where G(x) = x + x·G(G(x)) = g.f. of A030266. A141141