Properties of the Number 57819

Fifty-Seven Thousand Eight Hundred Nineteen

Basics

Value: 57818 → 57819 → 57820

Parity: odd

Prime: No

Previous Prime: 57809

Next Prime: 57829

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 19273

Divisors: 1, 3, 19273, 57819

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110000111011011

Octal: 160733

Duodecimal: 29563

Hexadecimal: e1db

Square: 3343036761

Square Root: 240.4558171473504

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

a(n) is the number of 5 element sets of distinct integer-sided trapezoids whose base angles are 60 degrees that fill an equilateral triangular grid of side n units formed by directly binary space partitioning 3-trapezoid sets without forming 4-trapezoid sets. A391203

Numbers n such that 105·2ⁿ-1 is prime. A50578

a(0)=4, a(1)=9, a(n) = 4a(n-1) - a(n-2). A57819