Properties of the Number 11669

Eleven Thousand Six Hundred Sixty-Nine

Basics

Value: 11668 → 11669 → 11670

Parity: odd

Prime: No

Previous Prime: 11657

Next Prime: 11677

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 × 1667

Divisors: 1, 7, 1667, 11669

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110110010101

Octal: 26625

Duodecimal: 6905

Hexadecimal: 2d95

Square: 136165561

Square Root: 108.02314566795395

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

Number of unordered pairs of partitions of n (into distinct parts) with empty intersection. A108796

G.f.: ∑_n>=0 (xⁿ - 1)ⁿ * xⁿ / (1-x)ⁿ⁺¹. A243919

Expansion of e.g.f. log(1+log(1+x)/exp(x)). A9324

a(n) = (a(n-1)²*a(n-3)⁴+a(n-2))/a(n-4) with a(0)=a(1)=a(2)=a(3)=1. A208227

Number of partitions p of n such that m(p) <= m(c(p)), where m = minimal multiplicity of parts, and c = conjugate. A240730

G.f. A(x) satisfies: ∑_n>=0 A(x)^n*(n+1/2) * xⁿ = ∑_n>=0 xⁿ / (1-x)^n*(n-1/2). A326423

G.f. A(x) satisfies A(x) = 1 / (1 - x - x² * A(x³)). A367666

Numbers k that divide the (right) concatenation of all numbers <= k written in base 7 (most significant digit on left). A29452

Numbers k such that k and k² use only the digits 1, 3, 5, 6 and 9. A137035

Number of 0..n arrays x(0..4) of 5 elements with nondecreasing average value. A200765