Properties of the Number -222

Two Hundred Twenty-Two

Basics

Value: -223 → -222 → -221

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 6

Digital Root: 6

Palindrome: Yes

Factorization: 2 × 3 × 37

Divisors: 1, 2, 3, 6, 37, 74, 111, 222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11011110

Octal: -336

Duodecimal: -166

Hexadecimal: -de

Square: 49284

Square Root: 14.89966442575134

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

McKay-Thompson series of class 16B for the Monster group. A29839

Coefficients in the expansion ∏_n>=1 (1-q^2n-1)²/(1-q²ⁿ)². A274621

G.f.: Im((i; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1). A278400

Expansion of ∏_m>=1 ((1+q^2·m-1)/(1+q^2·m))³. A29840

Expansion of (1-x-x^N)/((1-x)(1-x²)(1-x³)...(1-x^N)) for N = 8. A60027

a(n) = M(10ⁿ), where M(n) is Mertens's function. A84237

McKay-Thompson series of class 30G for the Monster group. A58618

Expansion of q^-1 * ψ(-q) / ψ(-q³)³ in powers of q where ψ() is a Ramanujan θ function. A133637

Expansion of ∏_k>0 ((1-x^5k-2) * (1-x^5k-3)/((1-x^5k-1) * (1-x^5k-4)))² in powers of x. A285442

Coefficient array for certain polynomials N(3; k,x) (rising powers of x). A62746