Properties of the Number -665855

Six Hundred Sixty-Five Thousand Eight Hundred Fifty-Five

Basics

Value: -665856 → -665855 → -665854

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 5 × 19 × 43 × 163

Divisors: 1, 5, 19, 43, 95, 163, 215, 815, 817, 3097

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -10100010100011111111

Octal: -2424377

Duodecimal: -2813BB

Hexadecimal: -a28ff

Square: 443362881025

Square Root: 815.9993872546719

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

Number of not-necessarily-symmetric n X 2 crossword puzzle grids. A34182

Expansion of (1+4·x+x²)/((1-x²)*(1-2·x-x²)); a Pellian-related sequence. A114696

Values of k such that {s(1),...,s(k)} is a palindrome, where {s(1),s(2),...} is the fixed point of the substitutions 0->1 and 1->110. A98894