Properties of the Number 22212

Twenty-Two Thousand Two Hundred Twelve

Basics

Value: 22211 → 22212 → 22213

Parity: even

Prime: No

Previous Prime: 22193

Next Prime: 22229

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 617

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 617

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011011000100

Octal: 53304

Duodecimal: 10A30

Hexadecimal: 56c4

Square: 493372944

Square Root: 149.03690818049066

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 which are divisible by prime(d) for all digits d in their decimal representation. A256786

Sum of the reflection lengths of all permutations of n letters. A67318

Triangle read by rows: row n (n>=0) has g.f. ∑_i=1..n n!*xⁱ*(1+x)^n-i/(n+1-i). A126671

a(n) is the smallest positive multiple of n whose decimal digits are all 0, 1 or 2. A181060

List of primitive words over the alphabet {1,2}. A213969

Take n-th string over {1,2} in lexicographic order and apply the Post tag system described in A284116 (but adapted to the alphabet {1,2}) just once. A289673

T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having at most one duplicate clockwise edge difference. A210300

Numbers that are the sum of eight fourth powers in exactly nine ways. A345841

Primes of form 4k+3 written in base 3. A72805

Sequence is {a(6,n)}, where a(m,n) is defined at sequence A110665. A110671