Properties of the Number -128159

One Hundred Twenty-Eight Thousand One Hundred Fifty-Nine

Basics

Value: -128160 → -128159 → -128158

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 128159

Divisors: 1, 128159

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -11111010010011111

Octal: -372237

Duodecimal: -621BB

Hexadecimal: -1f49f

Square: 16424729281

Square Root: 357.99301669166675

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

Length of the shorts leg in the unique primitive Pythagorean triple whose inradius is A000032(n) and such that its long leg and its hypotenuse are consecutive natural numbers. A380821

a(n) = A014217(n+3) - A014217(n). A153263

a(n) = a(n-1) + a(n-2) - floor( a(n-1)/2 ). A173510

a(n) = least m such that if r and s in {F(h)/F(2·h): h = 1,2,...,n} satisfy r < s, then r < k/m < s for some integer k, where F = A000045 (Fibonacci numbers). A24831

a(n)=a(n-1)+a(n-4). A14098