Properties of the Number 6918

Six Thousand Nine Hundred Eighteen

Basics

Value: 6917 → 6918 → 6919

Parity: even

Prime: No

Previous Prime: 6917

Next Prime: 6947

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 1153

Divisors: 1, 2, 3, 6, 1153, 2306, 3459, 6918

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1101100000110

Octal: 15406

Duodecimal: 4006

Hexadecimal: 1b06

Square: 47858724

Square Root: 83.17451532771321

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

Partial sums of Catalan numbers (A000108). A14137

Triangle built from partial sums of Catalan numbers A000108 multiplied by powers. A112705

T(n,k)=Number of length-n 0..k arrays with no repeated value differing from the previous repeated value by other than plus or minus one modulo k+1. A269678

Numbers n such that there are equal numbers of 0's and 1's in first n digits of binary representation of π. A39624

Triangle read by rows: the almost-Riordan array ( 1/(1-x) | 2/((1-x)*(1+sqrt(1-4·x))), (1-2·x-sqrt(1-4·x))/(2·x) ). A373744

Triangle, read by rows, where the n-th diagonal is generated from the n-th row by the sum of the products of the n-th row terms with binomial coefficients. A91491

Expansion of ∏_k>=1 1/(1 - x^k²)². A279225

Trajectory of 270 under repeated application of k -> (φ(k)+σ(k))/2. A291789

Position of A075165(n+1) in A014486. A75161

T(n,k)=Number of nXk 0..3 arrays with exactly floor(nXk/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order. A223052