Properties of the Number 52185

Fifty-Two Thousand One Hundred Eighty-Five

Basics

Value: 52184 → 52185 → 52186

Parity: odd

Prime: No

Previous Prime: 52183

Next Prime: 52189

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 7 ² × 71

Divisors: 1, 3, 5, 7, 15, 21, 35, 49, 71, 105

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100101111011001

Octal: 145731

Duodecimal: 26249

Hexadecimal: cbd9

Square: 2723274225

Square Root: 228.44036420913008

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

Nonnegative values·of solutions (x, y) to the Diophantine equation x² + (x + 23)² = y². A118337

Numbers k for which 2·k-1, 4·k-1, 8·k-1 and 16·k-1 are primes. A124494

Values that show the slow decrease in the Andrica function Af(k) = sqrt(p(k+1)) - sqrt(p(k)), where p(k) denotes the k-th prime. A84977

Numbers k such that 2·k-1, 4·k-1, 6·k-1 and 8·k-1 are primes. A124487

Expansion of 1/((1-2x)(1-4x)(1-7x)). A16285

Numbers n such that φ(n) + φ(n+1) = σ(n)/2. A76647

The values of a in a² + b² = c² where b - a = 23 and gcd(a,b,c)=1. A117476

Number of 3 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 3 X n array. A219520

Number of reduced words of length n in Coxeter group on 7 generators S_i with relations (S_i)² = (S_i S_j)⁴ = I. A162941

Length of shortest dominating path in binary hypercube of dimension n. A52185