Properties of the Number -161705

One Hundred Sixty-One Thousand Seven Hundred Five

Basics

Value: -161706 → -161705 → -161704

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 32341

Divisors: 1, 5, 32341, 161705

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100111011110101001

Octal: -473651

Duodecimal: -796B5

Hexadecimal: -277a9

Square: 26148507025

Square Root: 402.1256022687439

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 n-step 2-dimensional closed self-avoiding paths on triangular lattice, reduced for symmetry, i.e., where rotations and reflections are not counted as distinct. A284869

a(n) = ∑_{k=0..floor(n/2)} T(n-k, k), T given by A026692. A26702