Properties of the Number 22195

Twenty-Two Thousand One Hundred Ninety-Five

Basics

Value: 22194 → 22195 → 22196

Parity: odd

Prime: No

Previous Prime: 22193

Next Prime: 22229

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 23 × 193

Divisors: 1, 5, 23, 115, 193, 965, 4439, 22195

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011010110011

Octal: 53263

Duodecimal: 10A17

Hexadecimal: 56b3

Square: 492618025

Square Root: 148.9798644112687

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

Number of n-node ordered rooted trees of height equal to the number of internal (non-leaf) nodes. A358588

Triangle read by rows: T(n,k) is the number of acyclic digraphs on n unlabeled nodes with k arcs and a global source, n >= 1, k = 0..n*(n-1)/2. A350488

Fourth row of Pascal-(1,5,1) array A081580. A81590

Expansion of 1/sqrt((1-x)² - 12·x³). A98481

G.f. satisfies: A(x) = A(x²)² + x·A(x²)³. A174512

First differences of A323289. A323452

Counterexamples to a conjecture of Ramanujan about congruences related to the partition function. A340757

Numbers whose square and cube taken together contain each decimal digit at least twice. A363909

Gaussian binomial coefficients [n, 12] for q = 2. A22195