Properties of the Number -4256

Two Hundred Fifty-Six

Basics

Value: -4257 → -4256 → -4255

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁵ × 7 × 19

Divisors: 1, 2, 4, 7, 8, 14, 16, 19, 28, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000010100000

Octal: -10240

Duodecimal: -2568

Hexadecimal: -10a0

Square: 18113536

Square Root: 65.23802572120036

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

Expansion of f(x)¹² in powers of·where f() is a Ramanujan θ function. A209676

Irregular triangular array read by rows: row n shows the coefficients of this polynomial of degree n: (1/n!)*(numerator of n-th derivative of (1+x)/(x²-3x+1)). A328647

a(n) = T(n)²-n!, where T(n) is the n-th triangular number. A83474

sin(cos(x)*arctan(x))=x-6/3!*x³+100/5!*x⁵-4256/7!*x⁷+302352/9!*x⁹... A12497

Octagonal numbers: n*(3·n-2). Also called star numbers. A567

Numbers k such that k and k+1 have the same sum of unitary divisors (A034448). A64125

a(1)=1, a(n)=a(n-1)+n if n odd, a(n)=a(n-1)+ n² if n is even. A140113

Table read by rows: T(n,k) = the number of regions with k sides, k >= 3, in a Farey diagram of order (n,n). A358885

Expansion of ∏_k>=1 (1 - x^k)¹². A735

a(n) = (2·n - 1)*(11·n² - 11·n + 6)/6. A63492