Properties of the Number 27285

Twenty-Seven Thousand Two Hundred Eighty-Five

Basics

Value: 27284 → 27285 → 27286

Parity: odd

Prime: No

Previous Prime: 27283

Next Prime: 27299

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 17 × 107

Divisors: 1, 3, 5, 15, 17, 51, 85, 107, 255, 321

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 110101010010101

Octal: 65225

Duodecimal: 13959

Hexadecimal: 6a95

Square: 744471225

Square Root: 165.1817181167456

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

G.f. satisfies: A(x) = 1/(1-x) * A(x²)*A(x³)*A(x⁴)*...*A(xⁿ)*... A129374

Array read by antidiagonals: T(n,k) is the number of nonequivalent series-parallel networks with longest path of at most n edges and largest cut set of at most k edges. A391484

Odd composite numbers k such that cototient(k) - φ(k) = k - 2*φ(k) is an odd prime. A83255

Numbers whose sum of divisors is a sixth power. A19424

Numbers whose sum of divisors is 6⁶ = 46656. A48256

4-dimensional analog of centered polygonal numbers. A6323

Number of (s,3) gates. A37295

Expansion of 1/(1 - 9·x/(1-x))^5/3. A377235

a(n) = n·Fibonacci(n) + binomial(n, 2). A132920

Number of permutations p of [n] such that max_j=1..n |p(j)-j| = 2. A323798