Properties of the Number 56819

Fifty-Six Thousand Eight Hundred Nineteen

Basics

Value: 56818 → 56819 → 56820

Parity: odd

Prime: No

Previous Prime: 56813

Next Prime: 56821

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 7 × 8117

Divisors: 1, 7, 8117, 56819

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1101110111110011

Octal: 156763

Duodecimal: 28A6B

Hexadecimal: ddf3

Square: 3228398761

Square Root: 238.36736353788032

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

T(n,k)=Equals two maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..2 nXk array. A220319

a(n) = floor(n·3^n/2). A128443

Equals two maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..2 n X 4 array. A220318

a(n) = ∏_k∣n (n+1-k). A56819