Properties of the Number 66868

Sixty-Six Thousand Eight Hundred Sixty-Eight

Basics

Value: 66867 → 66868 → 66869

Parity: even

Prime: No

Previous Prime: 66863

Next Prime: 66877

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 73 × 229

Divisors: 1, 2, 4, 73, 146, 229, 292, 458, 916, 16717

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010100110100

Octal: 202464

Duodecimal: 32844

Hexadecimal: 10534

Square: 4471329424

Square Root: 258.58847615468096

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

Indices of the start of 10 successive distinct digits in the decimal expansion of π. A258157

Numbers with digits 6 and 8 only. A284635

Number of 6 X n binary arrays without the pattern 0 1 diagonally, vertically, antidiagonally or horizontally. A188557

Integers k, not divisible by any of their digits, such that ∑_{j = digits of k} k/j is an integer different from k. A393454

Array read by ascending antidiagonals where row n contains the second partial sums of row n of Pascal's triangle. A210489

a(n) is the least k such that n + ∑_i=1..k A005385(i) is prime; or 0 if none exists. A66868