Properties of the Number 81446

Eighty-One Thousand Four Hundred Forty-Six

Basics

Value: 81445 → 81446 → 81447

Parity: even

Prime: No

Previous Prime: 81439

Next Prime: 81457

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 193 × 211

Divisors: 1, 2, 193, 211, 386, 422, 40723, 81446

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111000100110

Octal: 237046

Duodecimal: 3B172

Hexadecimal: 13e26

Square: 6633450916

Square Root: 285.38745592614964

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

Total number of interior vertices in the multigraphs of all unoriented series-parallel networks with n edges. A339286

Numbers whose base-5 representation has exactly 8 runs. A43608

a(n) = sqrt( A081445(n) )/6. A81446