Properties of the Number 26906

Twenty-Six Thousand Nine Hundred Six

Basics

Value: 26905 → 26906 → 26907

Parity: even

Prime: No

Previous Prime: 26903

Next Prime: 26921

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 11 × 1223

Divisors: 1, 2, 11, 22, 1223, 2446, 13453, 26906

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110100100011010

Octal: 64432

Duodecimal: 136A2

Hexadecimal: 691a

Square: 723932836

Square Root: 164.03048497154424

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

Numbers k such that k·15^k - 1 is prime. A299378

Numbers k such that k*(3k-1)/2 is a pentagonal palindrome. A28386

Number of nX6 0..1 arrays with every repeated value in every row and column greater than the previous repeated value. A267717

Binomial transform of A135318. A373245

a(1) = 1; a(n+1) = floor((sum{k=1 to n} a(k)³)^1/3). A16085

Number of n X n 0..1 arrays with every repeated value in every row and column greater than the previous repeated value. A267713

Number of sums S of distinct positive integers satisfying S <= n. A26906

T(n,k)=Number of nXk 0..1 arrays with every repeated value in every row and column greater than the previous repeated value. A267719

Number of palindromic pentagonal numbers of length n whose index is also palindromic. A307753