Properties of the Number 22198

Twenty-Two Thousand One Hundred Ninety-Eight

Basics

Value: 22197 → 22198 → 22199

Parity: even

Prime: No

Previous Prime: 22193

Next Prime: 22229

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 11 × 1009

Divisors: 1, 2, 11, 22, 1009, 2018, 11099, 22198

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011010110110

Octal: 53266

Duodecimal: 10A1A

Hexadecimal: 56b6

Square: 492751204

Square Root: 148.98993254579318

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

Leftmost column sequence of triangle A073153. A73155

Smallest number requiring n steps to reach a prime under the "add a digit" process described in A241180. A241182

Coefficient of xⁿ in ∏_k>=1 (1 + x^k)^k·n. A270922

a(n) is the concatenation of n and 9n. A9474

Numbers n such that n!8-1 is prime. A204662

Number of integer partitions of n such that the least and greatest parts are both even or both odd. A391225

Triangle of numbers relating two sequences A073155 and A073156. A73153

a(n) = prime(n)²-3. A182200

Triangle of numbers relating two sequences (A073157 and A073155). A73154

Smallest multiple of n beginning with n and having a digit sum n, or 0 if no such number exists. A77727