Properties of the Number 26306

Twenty-Six Thousand Three Hundred Six

Basics

Value: 26305 → 26306 → 26307

Parity: even

Prime: No

Previous Prime: 26297

Next Prime: 26309

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 7 × 1879

Divisors: 1, 2, 7, 14, 1879, 3758, 13153, 26306

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110011011000010

Octal: 63302

Duodecimal: 13282

Hexadecimal: 66c2

Square: 692005636

Square Root: 162.191245139804

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 cyclic arrangements of S={1,2,...,n} such that the difference between any two neighbors is 2^k for some k=0,1,2,... A242519

Fibonacci sequence beginning 4, 14. A22383

a(n) = 2·a(n-1) + a(n-2) - 4·a(n-3) + 2·a(n-4) + a(n-5) -2·a(n-6) + a(n-7) for n >= 7, a(0) = 2, a(1) = 4, a(2) = 7, a(3) = 11, a(4) = 18, a(5) = 30, a(6) = 47. A289077

Row sums of triangle A166890. A229113

Numbers k such that (41·10^k + 49)/9 is prime. A254441

Number of nX6 0..1 arrays with every element equal to 1 or 2 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300348

Expansion of e.g.f. 1/(1 - x - log(1 + x)). A368232

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, -1, 1), (-1, 1, 1), (1, 0, -1), (1, 1, 0)}. A149150

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1 or 2 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300350

a(n) = T(2n,n+1), where T is the array in A026300. A26306