Properties of the Number -6486

Four Hundred Eighty-Six

Basics

Value: -6487 → -6486 → -6485

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 23 × 47

Divisors: 1, 2, 3, 6, 23, 46, 47, 69, 94, 138

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100101010110

Octal: -14526

Duodecimal: -3906

Hexadecimal: -1956

Square: 42068196

Square Root: 80.53570636680354

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

Coefficients in the power series expansion of A(x) = ∑_n=-oo..+oo n*(n+1)*(n+2)/6·x^3·n * (1 - xⁿ)^n-2. A357156

Numbers whose sum of divisors is a cube. A20477

Number of n X n symmetric binary arrays with path of adjacent 1's from upper right corner to lower left corner. A69344

Number A(n,k) of n-length words over a k-ary alphabet {a₁,a₂,...,a_k} avoiding consecutive letters a_i, a_i+1; square array A(n,k), n>=0, k>=0, read by antidiagonals. A277666

Numbers k such that 2·3^k - 7 is prime. A59454

Dispersion of A016825 (4k+2, k>0), by antidiagonals. A191668

Array read by antidiagonals: T(m,n) = number of minimal dominating sets in the n X m king graph. A286849

Composite numbers k such that A075254(k) is a square. A386246

a(n) = ∑_d∣n τ(dⁿ), where τ() is the number of divisors (A000005). A321348

a(n) = n·A033885(A003961(n)), where A033885(n) = 3·n-σ(n), and A003961 is fully multiplicative with a(p) = nextprime(p). A388977