Properties of the Number -111865

One Hundred Eleven Thousand Eight Hundred Sixty-Five

Basics

Value: -111866 → -111865 → -111864

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 13 × 1721

Divisors: 1, 5, 13, 65, 1721, 8605, 22373, 111865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11011010011111001

Octal: -332371

Duodecimal: -548A1

Hexadecimal: -1b4f9

Square: 12513778225

Square Root: 334.46225497057213

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(0)=-4, a(1)=5; thereafter a(n) = 2·a(n-1) + a(n-2). A221174

Consider all Pythagorean triples (X,X+7,Z); sequence gives Z values. A76294

Consider Pythagorean triples which satisfy X²+(X+7)²=Z²; sequence gives increasing values of Z. A60569

Part of the positive proper solutions y of the Pell equation x² - 2·y² = - 7² based on the fundamental solution (x0, y0)= (1, 5). A254759

Number of n X 2 0..2 arrays with rows and columns in nondecreasing order. A184130

Centered square numbers which are sphenic numbers. A380882