Properties of the Number 11180

Eleven Thousand One Hundred Eighty

Basics

Value: 11179 → 11180 → 11181

Parity: even

Prime: No

Previous Prime: 11177

Next Prime: 11197

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 13 × 43

Divisors: 1, 2, 4, 5, 10, 13, 20, 26, 43, 52

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10101110101100

Octal: 25654

Duodecimal: 6578

Hexadecimal: 2bac

Square: 124992400

Square Root: 105.73551910309043

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

Four times second pentagonal numbers: a(n) = 2·n*(3·n+1). A33580

Divide natural numbers in groups with prime(n) elements and add together. A34956

T(n,k)=Number of nXk 0..3 arrays with every diagonal, row and column running average nondecreasing rightwards and downwards and diagonally. A201836

Number of corners in a 4-sided fractal. A60919

a(n) = n*(2·n² + 1)*(n² + 1)/6. A52459

Number of partitions p of n such that (maximal multiplicity of the parts of p) < (number of distinct parts of p). A240305

Number of tilings of an n X 1 rectangle by tiles of dimension 1 X 1 and 2 X 1 such that every tile is next to a tile of different size. A245596

Numbers k such that k + A224787(k) is a square. A386640

Nonprimes such that it takes exactly 4 iterations of reverse-and-add digits to generate a prime. A245209

Expansion of 1/(1-x⁶-x⁷-x⁸-x⁹-x¹⁰-x¹¹-x¹²-x¹³). A17853