Properties of the Number -128598

One Hundred Twenty-Eight Thousand Five Hundred Ninety-Eight

Basics

Value: -128599 → -128598 → -128597

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 21433

Divisors: 1, 2, 3, 6, 21433, 42866, 64299, 128598

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -11111011001010110

Octal: -373126

Duodecimal: -62506

Hexadecimal: -1f656

Square: 16537445604

Square Root: 358.6056329730474

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) is the number of n-bead necklaces labeled with numbers -k..k allowing reversal, with sum zero and avoiding the patterns z z+1 z+2 and z z-1 z-2. A209485

Numbers k for which A064380(k) = k/2. A185078

a(n) = ∑_k=1..n φ(k)*φ(k+1)*φ(k+2), where φ(k) = A000010(k) is Euler's totient function. A335131

Numbers k such that iphi(k) divides k, where iphi is the infinitary Euler φ function (A064380). A373057

Number of n-bead necklaces labeled with numbers -4..4 allowing reversal, with sum zero and avoiding the patterns z z+1 z+2 and z z-1 z-2. A209481