Properties of the Number -8256

Two Hundred Fifty-Six

Basics

Value: -8257 → -8256 → -8255

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁶ × 3 × 43

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000001000000

Octal: -20100

Duodecimal: -4940

Hexadecimal: -2040

Square: 68161536

Square Root: 90.86253353280438

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

First term of n-th difference sequence of (floor(r·k)), r = -(1+sqrt(5))/2, k >= 0. A325746

E.g.f. A(x) satisfies A(x) = exp( 2·sin(x·A(x)) / A(x) ). A381414

Numbers of the form 2^n-1*(2^n·m-1)/(2ⁿ-1), n >= 1, m >= 1. A272919

Number of (n-1)-bead black-white reversible strings; also binary grids; also row sums of Losanitsch's triangle A034851; also number of caterpillar graphs on n+2 vertices. A5418

a(n) = 2^n-1*(1+2ⁿ). A7582

a(n) = 4·a(n-1) - 6·a(n-2) + 4·a(n-3), n > 3, with a(0)=a(1)=a(2)=0, a(3)=1. A749

Numbers that are the sum of 3 nonzero 6th powers. A3359

3 times pentagonal numbers: 3·n*(3·n-1)/2. A62741

Sum of every 4th entry of row n in Pascal's triangle, starting at "n choose 0". A38503

Coordination sequence for (3,3,6) tiling of hyperbolic plane. A265073