Properties of the Number 11218

Eleven Thousand Two Hundred Eighteen

Basics

Value: 11217 → 11218 → 11219

Parity: even

Prime: No

Previous Prime: 11213

Next Prime: 11239

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 71 × 79

Divisors: 1, 2, 71, 79, 142, 158, 5609, 11218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101111010010

Octal: 25722

Duodecimal: 65AA

Hexadecimal: 2bd2

Square: 125843524

Square Root: 105.91506030777681

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

Growth series for affine Coxeter group (or affine Weyl group) D₄. A266759

Number of integer compositions of n whose maximal runs R all satisfy length(R) >= first(R). A389509

Sum of the prime parts in the partitions of n into 4 parts. A309465

Expansion of χ(x) / φ(x²) in powers of·where φ(), χ() are Ramanujan θ functions. A85261

a(n) = a(n-1) + a(n-3) + a(n-4), n >= 4, with initial terms 2,5,4,7. A111570

Expansion of ∏_k>0 (1-k²*x^k)^-1/k. A151954

Number of strict compositions of n with alternating parts strictly decreasing. A342343

Denominators of continued fraction convergents to sqrt(546). A42045

Sum of the digit sums of the n-th powers of the first n positive integers. A287894

Antidiagonal sums of array A099597. A99598