Properties of the Number 22

Twenty-Two

Basics

Value: 21 → 22 → 23

Parity: even

Prime: No

Previous Prime: 19

Next Prime: 23

Digit Sum: 4

Digital Root: 4

Palindrome: Yes

Factorization: 2 × 11

Divisors: 1, 2, 11, 22

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10110

Octal: 26

Duodecimal: 1A

Hexadecimal: 16

Square: 484

Square Root: 4.69041575982343

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

No sequences found.