Properties of the Number 66782

Sixty-Six Thousand Seven Hundred Eighty-Two

Basics

Value: 66781 → 66782 → 66783

Parity: even

Prime: No

Previous Prime: 66763

Next Prime: 66791

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 33391

Divisors: 1, 2, 33391, 66782

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010011011110

Octal: 202336

Duodecimal: 32792

Hexadecimal: 104de

Square: 4459835524

Square Root: 258.4221352748251

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) = x + x*∑_n>=1 G_n(x)ⁿ, where G_n(x) is the n-th iteration of A(x) defined by G{n}(x) = G_n-1(A(x)) with G₀(x)=x. A172387

Numbers k such that (k, φ(k)) lies on the hyperbola x² - y² = m², for some natural number m, i.e., k² - φ(k)² is a square. A66782