Properties of the Number 26685

Twenty-Six Thousand Six Hundred Eighty-Five

Basics

Value: 26684 → 26685 → 26686

Parity: odd

Prime: No

Previous Prime: 26683

Next Prime: 26687

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 593

Divisors: 1, 3, 5, 9, 15, 45, 593, 1779, 2965, 5337

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110100000111101

Octal: 64075

Duodecimal: 13539

Hexadecimal: 683d

Square: 712089225

Square Root: 163.35544068074378

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

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 0 1 vertically. A208028

Denominators of convergents to Euler-Mascheroni constant. A46115

Coefficient triangle of the numerators of the (n-th convergents to) the continued fraction 1/(w+2/(w+3/(w+4/... . A180049

Super-4 Numbers (4·n⁴ contains substring '4444' in its decimal expansion). A32744

Triangle of coefficients T(n,k) of polynomials p(n,x) = ∑_k=0..n T(n,k)*x^k where T(0,0) = 1, and T(n,k) = 0 for k < 0 or k > n, and T(n,k) = T(n-1,k-1) + (2·n-1+k)*T(n-1,k) for n > 0 and 0 <= k <= n. A265649

Values of n for which there are no empty intervals when frac(m*γ) for m = 1, ..., n is plotted along [0, 1] subdivided into n equal regions. A46158

Greedy frac multiples of γ: a(1)=1, ∑_n>0 frac(a(n)*x) = 1 at x=γ, where "frac(y)" denotes the fractional part of y. A80157

Number of nX6 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 0 1 vertically. A208026

Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 0 1 vertically. A208029

Volume of torus (rounded down) with major radius = n and minor radius = n/3. A228641