Properties of the Number -195

One Hundred Ninety-Five

Basics

Value: -196 → -195 → -194

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 13

Divisors: 1, 3, 5, 13, 15, 39, 65, 195

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11000011

Octal: -303

Duodecimal: -143

Hexadecimal: -c3

Square: 38025

Square Root: 13.96424004376894

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

Dirichlet inverse of the gcd-sum function (A018804). A101035

Coefficients of the '6th-order' mock θ function φ(q). A53268

Dirichlet inverse of A003961, where A003961(n) is fully multiplicative with a(prime(k)) = prime(k+1). A346234

Numerators in expansion of (1-x)^5/2. A161202

Consider the e.g.f. S(x,y) = ∑_n>=0 ∑_k=0..n T(n,k) * x^2·n-2·k+1 * y^2·k / ((2·n-2·k+1)!*(2·k)!) and related functions C(x,y) and D(x,y), as defined in the Formula section. Sequence gives the triangular array of coefficients T(n,k) (n>=0, 0<=k<=n) of S(x,y). A326800

Triangle of generalized sum of divisors function, read by rows. A60044

Expansion of (-1+3·x+x²-x³)/((x²+4·x+1)*(x²-2·x-1)). A111640

G.f. A(x) satisfies: [xⁿ⁺³] A(Fⁿ(x)) = 0 for n>0 where Fⁿ(x) denotes the n-th iteration of F(x) = x+x² with F⁰(x)=x. A187124

Triangular table containing values of coefficients of the characteristic polynomial of a certain n·n circulant matrix, read by rows. A127412

a(2·n) = 1-n², a(2·n+1) = n*(n+1). A131723