Properties of the Number 82173

Eighty-Two Thousand One Hundred Seventy-Three

Basics

Value: 82172 → 82173 → 82174

Parity: odd

Prime: No

Previous Prime: 82171

Next Prime: 82183

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ² × 13 × 43

Divisors: 1, 3, 7, 13, 21, 39, 43, 49, 91, 129

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100000011111101

Octal: 240375

Duodecimal: 3B679

Hexadecimal: 140fd

Square: 6752401929

Square Root: 286.6583332122058

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

Expansion of 1/((1-5·x)*(1-8·x)). A16162

a(n) = 3600·n² - 1601·n + 178. A157853

Number of 4-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero with no three beads in a row equal. A208946

a(0)=1; for n >= 1, a(n) = ∑_k=0..n 11^k*N(n,k) where N(n,k) = (1/n)*C(n,k)*C(n,k+1) are the Narayana numbers (A001263). A82173

Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero. A299056