Properties of the Number -325

Three Hundred Twenty-Five

Basics

Value: -326 → -325 → -324

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 5 ² × 13

Divisors: 1, 5, 13, 25, 65, 325

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101000101

Octal: -505

Duodecimal: -231

Hexadecimal: -145

Square: 105625

Square Root: 18.027756377319946

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

Alternating sum of squares to n. A89594

B(n,k) an additive decomposition of (4ⁿ-2ⁿ)*B(n), B(n) the Bernoulli numbers (triangle read by rows). A154345

G.f.: ∏_n>=1 (1 - Lucas(n)*xⁿ + (-1)ⁿ*x^2·n) where Lucas(n) = A000204(n). A203860

Dirichlet inverse of A336849. A346254

Expansion of q^-1/3 * a(q) * b(q) * c(q) / 3 in powers of q where a(), b(), c() are cubic AGM θ functions. A130539

Low temperature series for spin-1/2 Ising partition function on 5D simple cubic lattice. A30047

Polynomials interpolating their own integral coefficients, read by row. The leading coefficients are positive and minimal. A103423

Difference between sums of quadratic residues and non-residues modulo n (residues are not necessarily coprime to n). A255644

Moebius transform of A007318 (signed). A128313

Triangle read by rows where row m is the m-th Gilbreath polynomial and column n is the numerator of the coefficient of the n-th degree term. A347924