Properties of the Number 26881

Twenty-Six Thousand Eight Hundred Eighty-One

Basics

Value: 26880 → 26881 → 26882

Parity: odd

Prime: Yes

Previous Prime: 26879

Next Prime: 26891

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 26881

Divisors: 1, 26881

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110100100000001

Octal: 64401

Duodecimal: 13681

Hexadecimal: 6901

Square: 722588161

Square Root: 163.95426191471816

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

Where prime race 4m-1 vs. 4m+1 is tied. A7351

Primes p such that the number of primes less than p equal to 1 mod 4 is one less than the number of primes less than p equal to 3 mod 4. A96448

Number of graphs with loops (symmetric relations) on n unlabeled vertices in which each connected component has an equal number of vertices and edges. A368984

Largest prime factor of n⁴ + 1. A96172

Magnanimous primes: primes with the property that inserting a "+" in any place between two digits yields a sum which is prime. A89392

Numbers k such that k³ is a cube whose digits occur with an equal minimum frequency of 2. A52051

Elite primes: a prime number p is called elite if only a finite number of Fermat numbers 2^2ⁿ+1 are quadratic residues mod p. A102742

Primes of the form 256·k + 1. A208178

Numbers n such that n, 10·n+1, 10·n+3, 10·n+7 and 10·n+9 are all primes. A67267

Primes of the form (4·n²-8·n-9)/3. A154616