Properties of the Number 66826

Sixty-Six Thousand Eight Hundred Twenty-Six

Basics

Value: 66825 → 66826 → 66827

Parity: even

Prime: No

Previous Prime: 66821

Next Prime: 66841

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 33413

Divisors: 1, 2, 33413, 66826

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010100001010

Octal: 202412

Duodecimal: 3280A

Hexadecimal: 1050a

Square: 4465714276

Square Root: 258.5072532831526

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

a(n) = 1ⁿ + 6ⁿ + 9ⁿ. A74522

Numbers k such that prime(k)-1 and prime(k+3)-1 have the same largest prime factor. A105405

Numbers k such that 2·10^k - 27 is prime. A282571

Numbers k that divide the average of prime(k-1) and prime(k). A66826