Properties of the Number -220

Two Hundred Twenty

Basics

Value: -221 → -220 → -219

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 4

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 11

Divisors: 1, 2, 4, 5, 10, 11, 20, 22, 44, 55

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: Yes

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Representations

Binary: -11011100

Octal: -334

Duodecimal: -164

Hexadecimal: -dc

Square: 48400

Square Root: 14.832396974191326

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

Triangle of coefficients of Chebyshev's S(n,x-2) = U(n,x/2-1) polynomials (exponents of·in increasing order). A53122

Array of coefficients of polynomials related to integer powers of the generating function of Catalan numbers A000108. A115139

a(n+3) = -a(n+2) + 2a(n+1) + a(n) with a(0)=-1, a(1)=0, a(2)=-3. A214683

Triangle of coefficients of shifted Chebyshev's S(n,x-2) = U(n,x/2-1) polynomials (exponents of·in decreasing order). A53123

The q expansion of λ⁵, a Hauptmodul for Gamma₁(5). A78905

Expansion of {∏_j>=1 (1 - (-x)^j) - 1}¹² in powers of x. A1490

Triangle of binomial coefficients C(-n,k). A27555

Expansion of (1-4·x)^5/2. A2422

Expansion of e.g.f. exp(log(1+x)²). A9199

Triangle T, read by rows, equal to the matrix product T = H*[C^-1]*H, where H is the self-inverse triangle A118433 and C is Pascal's triangle. A118435