Properties of the Number 26078

Twenty-Six Thousand Seventy-Eight

Basics

Value: 26077 → 26078 → 26079

Parity: even

Prime: No

Previous Prime: 26053

Next Prime: 26083

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 13 × 17 × 59

Divisors: 1, 2, 13, 17, 26, 34, 59, 118, 221, 442

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110010111011110

Octal: 62736

Duodecimal: 13112

Hexadecimal: 65de

Square: 680062084

Square Root: 161.4868415692127

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

Expansion of (χ(q) / χ³(q³))² in powers of q where χ() is a Ramanujan θ function. A164614

Expansion of (χ(-x) / χ³(-x³))² in powers of·where χ() is a Ramanujan θ function. A216046

Numbers k such that (k, σ(k)) lies on a circle with integral radius centered at the origin, i.e., k² + σ(k)² is a square. A66764

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 475", based on the 5-celled von Neumann neighborhood. A272449

Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1100-1111-1100 pattern in any orientation. A147477

G.f. A(x) satisfies: x = ∑_n>=1 1/A(x)^4·n * ∏_k=1..n (1 - 1/A(x)^2·k-1). A214692

a(n) = T(n,[ n/2 ]), where T is the array defined in A024996. A26078