Properties of the Number 28419

Twenty-Eight Thousand Four Hundred Nineteen

Basics

Value: 28418 → 28419 → 28420

Parity: odd

Prime: No

Previous Prime: 28411

Next Prime: 28429

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 9473

Divisors: 1, 3, 9473, 28419

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110111100000011

Octal: 67403

Duodecimal: 14543

Hexadecimal: 6f03

Square: 807639561

Square Root: 168.57935816700692

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

Row sums of signed triangle A062137 (generalized Laguerre, a=3). A62146

Number of permutations of length n which avoid the patterns 1243, 2341, 4321. A116825

Number of (6+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7. A252390

Recip transform of 2*(1 + x² + x⁵)-1/(1-x). A49156

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 7. A252384

Congruence classes of triangles which can be drawn using lattice points in n X n grid as vertices. A28419