Properties of the Number 26644

Twenty-Six Thousand Six Hundred Forty-Four

Basics

Value: 26643 → 26644 → 26645

Parity: even

Prime: No

Previous Prime: 26641

Next Prime: 26647

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 6661

Divisors: 1, 2, 4, 6661, 13322, 26644

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110100000010100

Octal: 64024

Duodecimal: 13504

Hexadecimal: 6814

Square: 709902736

Square Root: 163.22989922192565

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

Every run of digits of n in base 3 has length 2. A33001

G.f.: A(x) = exp( ∑_n>=1 A000172(n)*xⁿ/n ) where Franel number A000172(n) = ∑_k=0..n C(n,k)³. A166990

T(n,k)=Number of nXk 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally, vertically or antidiagonally. A232941

Number of closed binary words of length n. A226452

a(n) = 4*(5·n² - 5·n + 1). A193448

Number of n X n 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally, vertically or antidiagonally. A232934

Number of nX5 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally, vertically or antidiagonally. A232938

Number of (2+1)X(n+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically. A253699

Number of length 3 1..(n+1) arrays with every leading partial sum divisible by 2, 3 or 5. A254830

Number of n-digit left- or right-truncatable primes with no consecutive zero digits. A346662