Properties of the Number -22212

Twenty-Two Thousand Two Hundred Twelve

Basics

Value: -22213 → -22212 → -22211

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

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

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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

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

Triangle T(n,k) read by rows: the coefficient [x^k] of the polynomial ∏_i=1..n (i+1)*x-i in row n>=0 and column 0<=k<=n. A142070

A triangle of infinite sum coefficients with: Limit[Log[1-x],x->0]=-x: p(x,y)=1+n!*x^{n - 1}*Sum[x^k/(k·Binomial[n + k, k]), {k, 1, Infinity}]; such that Log[1-x]->-x. A157047

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