Properties of the Number -23185

Twenty-Three Thousand One Hundred Eighty-Five

Basics

Value: -23186 → -23185 → -23184

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 4637

Divisors: 1, 5, 4637, 23185

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -101101010010001

Octal: -55221

Duodecimal: -11501

Hexadecimal: -5a91

Square: 537544225

Square Root: 152.26621424334422

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

Where powers of 2 occur in the union of squares and powers of 2. A188917

G.f. A(x) satisfies: A(x) = 1 + x + x² + x³ * A(x/(1 - x)) / (1 - x)². A351660

G.f. A(x) satisfies: A(x) = (1 + 4·x * A(x)³) / (1 - x). A349517

Expansion of 1/( (1 + x) * (1 - x²*(1 + x)²) ). A375372

Numbers k such that the continued fraction for sqrt(k) has period 97. A20436

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 33. A31621

Numbers n such that (273·2ⁿ-1)²-2 is prime. A100913

Number of nonnegative even integers <= Fibonacci(n). A147997

Numbers of graphs which are double triangle descendants of K₅ with four more vertices than triangles. A332735