Properties of the Number 26538

Twenty-Six Thousand Five Hundred Thirty-Eight

Basics

Value: 26537 → 26538 → 26539

Parity: even

Prime: No

Previous Prime: 26513

Next Prime: 26539

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 4423

Divisors: 1, 2, 3, 6, 4423, 8846, 13269, 26538

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011110101010

Octal: 63652

Duodecimal: 13436

Hexadecimal: 67aa

Square: 704265444

Square Root: 162.9048802215575

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 (-1,0,1) polynomials of degree-n irreducible over the integers. A87610

Number of connected labeled 4-colorable (i.e., chromatic number <= 4) graphs on n nodes. A84284

Numbers m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,39. A64256

Number of length 2+2 0..n arrays with the sum of the maximum minus the median of adjacent triples multiplied by some arrangement of +-1 equal to zero. A251936

Number of (3412,1234)-avoiding involutions in S_n. A85583

a(n) = T(n,n-1), T given by A026536. Also a(n) = number of integer strings s(0), ..., s(n), counted by T, such that s(n) = 1. A26538