Properties of the Number 26458

Twenty-Six Thousand Four Hundred Fifty-Eight

Basics

Value: 26457 → 26458 → 26459

Parity: even

Prime: No

Previous Prime: 26449

Next Prime: 26459

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 13229

Divisors: 1, 2, 13229, 26458

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110011101011010

Octal: 63532

Duodecimal: 1338A

Hexadecimal: 675a

Square: 700025764

Square Root: 162.65915283192643

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 nXk 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302367

Triangle read by rows: T(m,n) (m >= n >= 1) = number of edges formed by drawing the line segments connecting any two of the (m+1) X (n+1) lattice points in an m X n grid of squares and extending them to the boundary of the grid. A333283

a(n) is root of square starting with digit 7: first term of runs. A35074

Numbers k such that 20·R_k + 3 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A56656

Numbers k such that the continued fraction for sqrt(k) has period 97. A20436

Nonnegative numbers n such that 6·2ⁿ-1 is prime. A164523

Number of nX6 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302365

Number of 5Xn 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302371

a(n) = least positive integer > a(n-1) and not a(i)*a(j)-2 for 1<=i<j<=n. A26458

Number of nX4 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,1,3,0,2 for x=0,1,2,3,4. A197065