Properties of the Number -6480

Four Hundred Eighty

Basics

Value: -6481 → -6480 → -6479

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ⁴ × 5

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100101010000

Octal: -14520

Duodecimal: -3900

Hexadecimal: -1950

Square: 41990400

Square Root: 80.49844718999243

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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 read by rows: terms of a binomial decomposition of 1 as Sum(k=0..n)T(n,k). A244117

Triangle read by rows: coefficients T(n,k) of a binomial decomposition of 1 as ∑_k=0..n T(n,k)*binomial(n,k). A244118

Expansion of ∏_k>=1 (1 - x^k)¹². A735

Alternating sum of cubes, i.e., ∑_k=0..n k^p*q^k for p=3, q=-1. A232599

Dirichlet inverse of A133494, 3^n-1. A349453

Sequence is {a(6,n)}, where a(m,n) is defined at sequence A110665. A110671

Expansion of f(x)¹² in powers of·where f() is a Ramanujan θ function. A209676

Expansion of q·f(-q²)¹² + 8·q² * f(-q⁴)¹² in powers of q where f() is a Ramanujan θ function. A227239

Expansion of a(q)² * b(q) in powers of q where a(), b() are cubic AGM θ functions. A231948

Triangle read by rows. Row n gives the numerators of the coefficients of the Bernoulli polynomials of the second kind (in rising powers). A290317