Properties of the Number 66830

Sixty-Six Thousand Eight Hundred Thirty

Basics

Value: 66829 → 66830 → 66831

Parity: even

Prime: No

Previous Prime: 66821

Next Prime: 66841

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 41 × 163

Divisors: 1, 2, 5, 10, 41, 82, 163, 205, 326, 410

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010100001110

Octal: 202416

Duodecimal: 32812

Hexadecimal: 1050e

Square: 4466248900

Square Root: 258.5149898942032

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

Numbers k such that 2^k + prime(k) is prime. A77375

Number of length 4 1..(n+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal. A254221

Numbers k such that either 2^k + prime(k) or 2^k - prime(k) is prime. A130640

a(n) = lcm(n+1, n-1). A66830