Properties of the Number 49181

Forty-Nine Thousand One Hundred Eighty-One

Basics

Value: 49180 → 49181 → 49182

Parity: odd

Prime: No

Previous Prime: 49177

Next Prime: 49193

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 11 × 17 × 263

Divisors: 1, 11, 17, 187, 263, 2893, 4471, 49181

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100000000011101

Octal: 140035

Duodecimal: 24565

Hexadecimal: c01d

Square: 2418770761

Square Root: 221.76789668479972

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

G.f. A(x) satisfies -1/x = ∑_n=-oo..+oo A(x)ⁿ * xⁿ * (1 - xⁿ)ⁿ⁺². A384821

Number of nX5 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A318549

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A318552

Revert transform of 2·x*(1 - x + x² - x³ + x⁴ - x⁵)-x/(1+x). A49181