Properties of the Number -209428

Two Hundred Nine Thousand Four Hundred Twenty-Eight

Basics

Value: -209429 → -209428 → -209427

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 41 × 1277

Divisors: 1, 2, 4, 41, 82, 164, 1277, 2554, 5108, 52357

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011001000010100

Octal: -631024

Duodecimal: -A1244

Hexadecimal: -33214

Square: 43860087184

Square Root: 457.6330407651965

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

Triangle read by rows: T(n,k) is the number of proper vertex colorings of the n-complete bipartite graph using exactly k interchangeable colors, 2 <= k <= 2·n. A384968

Coefficients of 1/(∑_k>=0 [(k+1)*r]*(-x)^k), where r = sqrt(5/2) and [ ] = floor. A288230

Number of ways to place 6 nonattacking bishops on a 6 X n board. A172211