Properties of the Number 13869

Thirteen Thousand Eight Hundred Sixty-Nine

Basics

Value: 13868 → 13869 → 13870

Parity: odd

Prime: No

Previous Prime: 13859

Next Prime: 13873

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 23 × 67

Divisors: 1, 3, 9, 23, 67, 69, 201, 207, 603, 1541

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11011000101101

Octal: 33055

Duodecimal: 8039

Hexadecimal: 362d

Square: 192349161

Square Root: 117.76671855834313

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

Triangle of coefficients of characteristic polynomial of negative Pascal matrix with (i,j)-th entry -C(i+j-2,i-1). A45912

Numbers m that generate rotationally symmetrical XOR-triangles T(m) that have central triangles of zeros. A334769

Numbers k which divide the sum of the Fibonacci numbers F(1) through F(k) and such that k is not a multiple of 24. A124456

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A316648

Odd integers m that divide the sum of the first m nonzero Fibonacci numbers. A331976

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 662", based on the 5-celled von Neumann neighborhood. A283602

Primitive terms of A359563: terms of A359563 with no proper divisor in A359563. A359564

T(n+3,3) from table A045912 of characteristic polynomial of negative Pascal matrix. A6136

9 times octagonal numbers: a(n) = 9·n*(3·n-2). A64201

Infinitary Ruth-Aaron numbers: numbers k such that A181894(k) = A181894(k+1). A330999