Properties of the Number 26287

Twenty-Six Thousand Two Hundred Eighty-Seven

Basics

Value: 26286 → 26287 → 26288

Parity: odd

Prime: No

Previous Prime: 26267

Next Prime: 26293

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 97 × 271

Divisors: 1, 97, 271, 26287

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110011010101111

Octal: 63257

Duodecimal: 13267

Hexadecimal: 66af

Square: 691006369

Square Root: 162.13266173106516

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

McKay-Thompson series of class 14B for Monster. A58503

Expansion of q^-1 * (χ(-q) * χ(-q⁷))³ in powers of q where χ() is a Ramanujan θ function. A132319

McKay-Thompson series of class 28B for the Monster group. A112169

a(n) = ∑_{k=0..floor(n/2)} binomial(n-k, floor((n-k)/2)). A129384

Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 7 king-move adjacent elements, with upper left element zero. A306162

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 7 king-move adjacent elements, with upper left element zero. A306166

a(n) = sum of the numbers between the two n's in A026284. A26287