Properties of the Number 26205

Twenty-Six Thousand Two Hundred Five

Basics

Value: 26204 → 26205 → 26206

Parity: odd

Prime: No

Previous Prime: 26203

Next Prime: 26209

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 1747

Divisors: 1, 3, 5, 15, 1747, 5241, 8735, 26205

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011001011101

Octal: 63135

Duodecimal: 131B9

Hexadecimal: 665d

Square: 686702025

Square Root: 161.8795848771549

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

Triangle read by rows: T(n,k) gives number of connected graphs on n nodes with clique number n-k, (n>=2, k=0..n-2). A126744

Triangle T(n,k) of series-reduced (or homeomorphically irreducible) graphs with loops on n labeled nodes and with k edges, k=0..binomial(n+1,2). A60517

Number of connected graphs on n nodes with clique number 5. A126747

Numbers m such that π(m) = d₁!!*d₂!!*...*d_k!! where d₁ d₂ ... d_k is the decimal expansion of m. A139182

a(n) = position of n in A026204. A26205