Properties of the Number -128556

One Hundred Twenty-Eight Thousand Five Hundred Fifty-Six

Basics

Value: -128557 → -128556 → -128555

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 3571

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 3571

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111011000101100

Octal: -373054

Duodecimal: -62490

Hexadecimal: -1f62c

Square: 16526645136

Square Root: 358.5470680398879

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

T(n,k)=Number of length n+5 0..k arrays with some disjoint triples in each consecutive six terms having the same sum. A248068

a(n) = (σ(2·n) - σ(n))*Lucas(n) where Lucas(n) = A000204(n) and σ(n) = A000203(n) is the sum of divisors of n. A225525

Number of length n+5 0..5 arrays with some disjoint triples in each consecutive six terms having the same sum. A248065

Number of length 3+5 0..n arrays with some disjoint triples in each consecutive six terms having the same sum. A248071