Properties of the Number 27443

Twenty-Seven Thousand Four Hundred Forty-Three

Basics

Value: 27442 → 27443 → 27444

Parity: odd

Prime: No

Previous Prime: 27437

Next Prime: 27449

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 13 × 2111

Divisors: 1, 13, 2111, 27443

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110101100110011

Octal: 65463

Duodecimal: 13A6B

Hexadecimal: 6b33

Square: 753118249

Square Root: 165.65928890345992

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

Coefficients in the power series A(x) such that: A(x) = ∑_n=-oo..+oo xⁿ * (1 - xⁿ⁺¹)ⁿ⁺¹ * A(x)ⁿ. A357201

Number of mappings from n points to themselves with in-degree <= 2. A6961

Interprimes (A024675) which are of the form s·prime, s=13. A75288

Numbers k such that 10^k + 109 is prime. A258933

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 630", based on the 5-celled von Neumann neighborhood. A269543

For n ≠ 1 mod 3, we can write 3/(2n+1) = 1/a + 1/b + 1/c with a>b>c>0, a,b,c distinct and odd; sequence gives smallest such a, or 1 if n = 1 mod 3. A27443