Properties of the Number 19394

Nineteen Thousand Three Hundred Ninety-Four

Basics

Value: 19393 → 19394 → 19395

Parity: even

Prime: No

Previous Prime: 19391

Next Prime: 19403

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 9697

Divisors: 1, 2, 9697, 19394

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101111000010

Octal: 45702

Duodecimal: B282

Hexadecimal: 4bc2

Square: 376127236

Square Root: 139.26234236145822

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

Expansion of (3+8·x-3·x²-2·x³)/((x²+4·x+1)*(x²-2·x-1)). A111639

Table a(k,i), read by antidiagonals, in which the n-th row comprises A214206(n) in position 0 followed by a second order recursive series G in which each product G(i)*G(i+1) lies in the same row of A001477 (interpreted as a square array - see below). A182439

G.f.: exp( ∑_n>=1 (xⁿ/n) / ∏_d∣n (1 - n·x^d/d) ). A198304

a(n) is the sum over all floor(k³/n), k=0 to n inclusive. A14818

Coefficients of 1/(∑_k>=0 round((k+1)*r)(-x)^k), where r = sqrt(2). A289912

Number of ways to reciprocally link elements of a 4 X n array either to themselves or to exactly two horizontal and antidiagonal neighbors, without consecutive collinear links. A220709

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 299", based on the 5-celled von Neumann neighborhood. A271154

Primes with primitive root 71. A19394