Properties of the Number 25826

Twenty-Five Thousand Eight Hundred Twenty-Six

Basics

Value: 25825 → 25826 → 25827

Parity: even

Prime: No

Previous Prime: 25819

Next Prime: 25841

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 37 × 349

Divisors: 1, 2, 37, 74, 349, 698, 12913, 25826

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010011100010

Octal: 62342

Duodecimal: 12B42

Hexadecimal: 64e2

Square: 666982276

Square Root: 160.70469812671936

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

a(n) = ∑_k=1..n gcd(k, n)³. A343497

The number of idempotents in the partition monoid on [1..n]. A225797

Number of self-complementary score sequences that are possible in an n-team round-robin tournament. A345470

a(n) = smallest number m > 0 such that n followed by m 9's yields a prime, or -1 if no such m exists. A373201

Expansion of 1/((1-x²)*(1-x¹⁰)*(1-x¹¹)). A25826