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Properties of the Number 86526

Eighty-Six Thousand Five Hundred Twenty-Six

Basics

Value: 86525 → 86526 → 86527

Parity: even

Prime: No

Previous Prime: 86509

Next Prime: 86531

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 2 × 11 × 19 × 23

Divisors: 1, 2, 3, 6, 9, 11, 18, 19, 22, 23

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101000111111110

Octal: 250776

Duodecimal: 420A6

Hexadecimal: 151fe

Square: 7486748676

Square Root: 294.1530214021267

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

Stirling numbers of second kind S(n,3). A392
Irregular triangle read by rows: T(n,k) is the number of binary pattern classes in the (6,n)-rectangular grid with k '1's and (6n-k) '0's: two patterns are in same class if one of them can be obtained by a reflection or 180-degree rotation of the other. A228165
O.g.f.: ∑n>=0 (n4)n * exp(-n4*x) * xn / n!. A217914
a(n) = 2·binomial(3·n-3, n-1)/(2·n-1) for n >= 2, and a(1) = 1. A46646
Triangle of rooted planar maps. A46651
If n mod 2 = 0 then m := n/2 and a(n) = (3·m)!*(5·m+1)/((m+1)!*(2·m+1)!); otherwise m := (n-1)/2, a(n) = 6*(3·m+2)!/(m!*(2·m+3)!). A47750
Number of periodic palindromic structures of length n using exactly three different symbols. A56509
Number of primitive (period n) periodic palindromic structures using exactly three different symbols. A56519
Triangle read by rows: T(n,k) is the number of nonseparable planar maps with r·n edges and a fixed outer face of r·k edges which are invariant under a rotation of 1/r for any r >= 2 (independent of actual value of r). A91599
Sequence arising from enumeration of domino tilings of Aztec Pillow-like regions. A92438