Properties of the Number 23206

Twenty-Three Thousand Two Hundred Six

Basics

Value: 23205 → 23206 → 23207

Parity: even

Prime: No

Previous Prime: 23203

Next Prime: 23209

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 41 × 283

Divisors: 1, 2, 41, 82, 283, 566, 11603, 23206

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101101010100110

Octal: 55246

Duodecimal: 1151A

Hexadecimal: 5aa6

Square: 538518436

Square Root: 152.33515680892575

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

The number of degree sequences with degree sum 2n representable by a connected graph (with multiple edges allowed). A147878

T(n,k)=Number of -k..k arrays x(0..n+1) of n+2 elements with zero sum and no two neighbors summing to zero. A199832

Numbers k such that Bernoulli number B_k has denominator 498. A282773

a(n) = A000043(n) - 3. A139480

Number of subsets of {1,...,n} containing a subset of the form {k,k+1,k+3} for some k. A209400

Expansion of (1/x) * Series_Reversion( x*(1+x)²*(1-x)³ ). A365854

a(n) = (∑_k=1..n A073698(k))^1/n. A93928

Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A082339/A082340. A89429

Number of -2..2 arrays x(0..n+1) of n+2 elements with zero sum and no two neighbors summing to zero. A199826

Number of -n..n arrays x(0..8) of 9 elements with zero sum and no two neighbors summing to zero. A199838