Properties of the Number 19204

Nineteen Thousand Two Hundred Four

Basics

Value: 19203 → 19204 → 19205

Parity: even

Prime: No

Previous Prime: 19183

Next Prime: 19207

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 4801

Divisors: 1, 2, 4, 4801, 9602, 19204

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100101100000100

Octal: 45404

Duodecimal: B144

Hexadecimal: 4b04

Square: 368793616

Square Root: 138.57849761056005

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

No-3-in-line problem: number of inequivalent ways of placing 2n points on an n X n grid so that no 3 are in a line. A769

T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change 0,1 0,-1 0,2 1,0 -1,0 or 2,0. A264163

Number of times that the numerator of a sum generated from the set 1, 1/2, 1/3,..., 1/n is a Fibonacci number. A256220

a(n) = sum of n-th column in array in A100452. A100454

a(n) = smallest k such that li(k) - π(k) >= n, where li(k) is the logarithmic integral and π(x) is the number of primes <= x. A359145

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 98 ones. A31866

Number of (n+1) X (2+1) arrays of permutations of 0..n·3+2 with each element having directed index change 0,1 0,-1 0,2 1,0 -1,0 or 2,0. A264159

Number of (n+1)X(5+1) arrays of permutations of 0..n·6+5 with each element having directed index change 0,1 0,-1 0,2 1,0 -1,0 or 2,0. A264162

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 449", based on the 5-celled von Neumann neighborhood. A272254

Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero. A299341