Properties of the Number -23188

Twenty-Three Thousand One Hundred Eighty-Eight

Basics

Value: -23189 → -23188 → -23187

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 11 × 17 × 31

Divisors: 1, 2, 4, 11, 17, 22, 31, 34, 44, 62

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101101010010100

Octal: -55224

Duodecimal: -11504

Hexadecimal: -5a94

Square: 537683344

Square Root: 152.27606509231842

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

Triangle read by rows: the coefficient [x^k] of the polynomial ∏_i=1..n (4^i-1-x), in row n and column 0 <= k <= n. A157784

Triangle read by rows: T(n, k) = (-1)^{n - k} * binomial(2n + 1, n - k) * L(2k + 1), 0 <= k <= n, where L(k) is the k-th Lucas number (A000032). A326832

a(n) = floor(n*φ¹⁵), where φ is the golden ratio, A001622. A4930

Positive integers m such that π(m³) = π(j³) + π(k³) for some 0 < j <= k < m. A262409

G.f. A(x) satisfies: A(x·G(x)) = G(x), where G(x) is the g.f. for A098616(n) = Pell(n+1)*Catalan(n). A98617

Number of quadrilaterals in the graph formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares). A332607

Symmetric difference of the primitive non-deficient numbers and the primitive Zumkeller numbers. A378538

Numbers that are primitive Zumkeller, but not primitive non-deficient. A378657

T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor, with every occupancy equal to zero or two. A221396

Numbers such that the sum of the factorials of the digits of the fifth power is a square. A126078