Properties of the Number 28765

Twenty-Eight Thousand Seven Hundred Sixty-Five

Basics

Value: 28764 → 28765 → 28766

Parity: odd

Prime: No

Previous Prime: 28759

Next Prime: 28771

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 11 × 523

Divisors: 1, 5, 11, 55, 523, 2615, 5753, 28765

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111000001011101

Octal: 70135

Duodecimal: 14791

Hexadecimal: 705d

Square: 827425225

Square Root: 169.60247639701493

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 1/(1-x⁵-x⁶-x⁷-x⁸-x⁹-x¹⁰-x¹¹-x¹²-x¹³-x¹⁴). A17845

Expansion of (1 - 2·x - 2·x² + 3·x³ + x⁵)/((1-x)*(1-2·x-x²)*(1-2·x²-x⁴)). A193530

Numbers whose base-13 representation has exactly 5 runs. A43660

1/2 the number of colorings of a 3 X 3 square array with n colors. A68239

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250853

Nonsquares mod 52. A28765

Number of (4+1) X (n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250856