Properties of the Number 6518

Six Thousand Five Hundred Eighteen

Basics

Value: 6517 → 6518 → 6519

Parity: even

Prime: No

Previous Prime: 6491

Next Prime: 6521

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 3259

Divisors: 1, 2, 3259, 6518

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101110110

Octal: 14566

Duodecimal: 3932

Hexadecimal: 1976

Square: 42484324

Square Root: 80.73413156775763

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) = n³ - 4·n² + 6·n - 2. A188377

Number of integer compositions of n with the same length as the absolute value of their alternating sum. A357183

Number of compositions (ordered partitions) of n into square parts (A000290) such that no two adjacent parts are equal (Carlitz compositions). A301503

a(n) = ∑_d∣n d·binomial(n/d+d-2,d-1). A157020

T(n,k)=number of distinct solutions of sum{i=1..k}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1. A180782

Number of ways to cover (without overlapping) a ring lattice (necklace) of n sites with molecules that are 6 sites wide. A58367

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. A316239

Triangle read by rows: Each row is constructed by forming the partial sums of the previous row, reading from the right and at every third row repeating the final term. A99961

a(n) = 1 + n/2 + 9·n²/2. A6137

A(n,k) for n >= k in triangular ordering, where A(n,k) is the number of compositions (ordered partitions) of n into k parts, with the first part greater than or equal to all other parts. A156042