Properties of the Number 9118

Nine Thousand One Hundred Eighteen

Basics

Value: 9117 → 9118 → 9119

Parity: even

Prime: No

Previous Prime: 9109

Next Prime: 9127

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 47 × 97

Divisors: 1, 2, 47, 94, 97, 194, 4559, 9118

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110011110

Octal: 21636

Duodecimal: 533A

Hexadecimal: 239e

Square: 83137924

Square Root: 95.48821916864928

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

Number of ordered rooted trees with n non-root nodes and all outdegrees <= three. A36765

Meandric numbers for a river crossing up to 7 parallel roads at n points. A208453

Numbers k such that 1/(1/φ(k) + 1/φ(k+1) + 1/φ(k+2)) is an integer. A73543

Number of digits in the decimal expansion of the number of partitions of 2ⁿ. A129490

Triangle associated with rooted trees with a degree constraint (A036765). A64580

Composite numbers k such that σ(k)*(φ(k) + 2) is a square. A65655

a(n) = (3·n+1)*(3·n+4). A85001

G.f.: A(x) = exp( 2*∑_n>=1 2^[A007814(n)²] * xⁿ/n ), where A007814(n) = exponent of highest power of 2 dividing n. A162580

a(n) = A036765(n-1) if n>0, with a(0) = 1. A246555

Triangle read by rows: T(n,k) = the number of Dyck paths of semilength n with k UUUU's. A135305