Properties of the Number 68668

Sixty-Eight Thousand Six Hundred Sixty-Eight

Basics

Value: 68667 → 68668 → 68669

Parity: even

Prime: No

Previous Prime: 68659

Next Prime: 68669

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 17167

Divisors: 1, 2, 4, 17167, 34334, 68668

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110000111100

Octal: 206074

Duodecimal: 338A4

Hexadecimal: 10c3c

Square: 4715294224

Square Root: 262.0457975240206

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 with digits 6 and 8 only. A284635

Number of partitions in all twice partitions of n where both partitions are strict. A327553

Expansion of ∏_k>0 theta₃(q^2·k-1)/theta₃(q^2·k), where theta₃() is the Jacobi θ function. A321026

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

a(1) = 9; a(n) = smallest palindromic multiple of a(n-1). A68668