Properties of the Number 20283

Twenty Thousand Two Hundred Eighty-Three

Basics

Value: 20282 → 20283 → 20284

Parity: odd

Prime: No

Previous Prime: 20269

Next Prime: 20287

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 6761

Divisors: 1, 3, 6761, 20283

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100111100111011

Octal: 47473

Duodecimal: B8A3

Hexadecimal: 4f3b

Square: 411400089

Square Root: 142.41839768793918

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

Sums of the diagonals of the matrix formed by listing the h-Stohr sequences in increasing order. A193911

Diagonal sums of number triangle A107030. A107031

Number of 0..n arrays of length 5 with each element differing from at least one neighbor by 1 or less. A221597

Number of n X 3 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 2 and every value within 2 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down. A253218

Strong pseudoprimes to base 57. A20283

a(n) is the number of ordered solutions (x,y,z) to x² + y² == z² mod n with 1 <= x,y,z <= n-1. A136679

Number of nX5 0..1 arrays with every element equal to 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. A298899