Properties of the Number -23184

Twenty-Three Thousand One Hundred Eighty-Four

Basics

Value: -23185 → -23184 → -23183

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ² × 7 × 23

Divisors: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101101010010000

Octal: -55220

Duodecimal: -11500

Hexadecimal: -5a90

Square: 537497856

Square Root: 152.26293048539424

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

a(n) = floor(c·r*a(n-1)) - floor(d·s*a(n-2)), where r = (1+sqrt(5))/2, s = r/(r-1), c = 1, d = 1, a(0) = 1, a(1) = 1. A275858

Expansion of -x/((x²+x+1)*(x²+3·x+1)); invert transform gives signed version of tetrahedral numbers A000292. A113067

E.g.f. satisfies A(x) = (1+x)^A(x^(x²)). A362795

Expansion of g.f. (1+x)²/((1 + x + x²)*(1 + x - x²)). A106511

Expansion of (1 + x)²/((1 + x + x²)*(1 + 3·x + x²)). A113066

Denominators of continued fraction convergents to sqrt(5). A1076

p-INVERT of the positive integers, where p(S) = 1 - S². A290890

Table by antidiagonals of T(n,k) = n·T(n,k-1) + T(n,k-2) starting with T(n,1) = 1. A73133

Array A(n,k) = n·A(n,k-1) + A(n,k-2) read by upward antidiagonals, starting A(n,0) = 0, A(n,1) = 1. A172236

a(n) = floor(Fibonacci(n)/2). A4695