Properties of the Number 82685

Eighty-Two Thousand Six Hundred Eighty-Five

Basics

Value: 82684 → 82685 → 82686

Parity: odd

Prime: No

Previous Prime: 82657

Next Prime: 82699

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 × 23 × 719

Divisors: 1, 5, 23, 115, 719, 3595, 16537, 82685

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100001011111101

Octal: 241375

Duodecimal: 3BA25

Hexadecimal: 142fd

Square: 6836809225

Square Root: 287.5499956529299

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

Base-3 Keith numbers. A188195

Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k primitive Dyck factors (n >= 0; 0 <= k <= n). A129154

a(n) = 100·n² - 49·n + 6. A157651

Number of skew Dyck paths of semilength n that have no primitive Dyck factors. A129155

Number of connected chordal graphs on n vertices. A48192

a(n) = (2·5ⁿ + 2ⁿ)/3. A82685

Number of (n+2)X(1+2) 0..2 arrays with every consecutive three elements in every row having 2 or 3 distinct values, in every column 1 or 2 distinct values, in every diagonal 2 distinct values, and in every antidiagonal 2 distinct values, and new values 0 upwards introduced in row major order. A252877