Properties of the Number 11868

Eleven Thousand Eight Hundred Sixty-Eight

Basics

Value: 11867 → 11868 → 11869

Parity: even

Prime: No

Previous Prime: 11867

Next Prime: 11887

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 23 × 43

Divisors: 1, 2, 3, 4, 6, 12, 23, 43, 46, 69

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111001011100

Octal: 27134

Duodecimal: 6A50

Hexadecimal: 2e5c

Square: 140849424

Square Root: 108.94035065117058

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

Numbers n such that σ(n) = 8*φ(n). A104901

Maximal permanent of an n X n matrix whose elements are a permutation of the first n² prime numbers. A350859

Sum of the squares of the quadratic residues of prime(n). A125613

G.f.: ∑_{k >= 1} (φ(k)/k)*log(1-f(x^k)), where f(x) = (1 - sqrt(1 - 4·x)) / (2·x) - 1 is the g.f. for the Catalan numbers (A000108) C₁, C₂, C₃, ... A60404

Coefficient of x³ in the minimal polynomial of the continued fraction [1ⁿ,sqrt(3),1,1,...], where 1ⁿ means n ones. A266802

Largest member of the n-th row of the triangular triangle (A093445). A93446

Triangle read by rows: T(n,k) is the k-th generalized Eulerian number of order n and degree 4, n >= 1. A211234

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 502", based on the 5-celled von Neumann neighborhood. A288766

Expansion of ∏_k>0 (1 - x^k)^k·3. A276552

Non-primitive balanced numbers: balanced numbers of the form m·n where m, n > 1 are both balanced. A291566