Properties of the Number 26634

Twenty-Six Thousand Six Hundred Thirty-Four

Basics

Value: 26633 → 26634 → 26635

Parity: even

Prime: No

Previous Prime: 26633

Next Prime: 26641

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 23 × 193

Divisors: 1, 2, 3, 6, 23, 46, 69, 138, 193, 386

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110100000001010

Octal: 64012

Duodecimal: 134B6

Hexadecimal: 680a

Square: 709369956

Square Root: 163.19926470422593

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

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the lower median minus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one. A238063

Numbers k such that 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)-1 and 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)+1 are twin primes with p(h) = h-th prime. A129311

Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the lower median minus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one. A238059

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 35", based on the 5-celled von Neumann neighborhood. A269816

a(n) = ∑_{k=0..floor(n/2)} A026626(n, k). A26634