Properties of the Number 66786

Sixty-Six Thousand Seven Hundred Eighty-Six

Basics

Value: 66785 → 66786 → 66787

Parity: even

Prime: No

Previous Prime: 66763

Next Prime: 66791

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 11131

Divisors: 1, 2, 3, 6, 11131, 22262, 33393, 66786

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010011100010

Octal: 202342

Duodecimal: 32796

Hexadecimal: 104e2

Square: 4460369796

Square Root: 258.42987443405224

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. A(x) equals the series obtained by removing all factors of 2 from the coefficients in 1 + x·A(x)². A378577

a(n) is the least k such that the distance between (n, φ(n)) and (n+k, φ(n+k)) is an integer (i.e., k² + (φ(n+k) - φ(n))² is a square), or 0 if none exists. A66786