Properties of the Number -204

Two Hundred Four

Basics

Value: -205 → -204 → -203

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 17

Divisors: 1, 2, 3, 4, 6, 12, 17, 34, 51, 68

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11001100

Octal: -314

Duodecimal: -150

Hexadecimal: -cc

Square: 41616

Square Root: 14.2828568570857

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

a(n) = n!*L_n(1), where L_n(x) is the n-th Laguerre polynomial. A9940

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

Coefficients of the '6th-order' mock θ function 2 μ(q). A53273

G.f.: ∑_n=-oo..+oo x^n*(n+1/2) * C(x)^2·n-1, where C(x) = 1 + x·C(x)² is the g.f. of the Catalan numbers (A000108). A355345

Exponential Riordan array (sech(x), tanh(x)). A60081

Coefficients of the v=2 member of a family of certain orthogonal polynomials. A129462

Sequence is {a(3,n)}, where a(m,n) is defined at sequence A110665. A110668

Table of coefficients of the algebraic number s(2·l+1) = 2·sin(π/(2·l+1)) as a polynomial in odd powers of ρ(2*(2·l+1)) = 2·cos(π/(2*(2·l+1))) (reduced version). A228785

Expansion of ∑_k>0 x^3·k/(1+x^k)³. A363615

a(n) = A077110(n) - n². A77111