Properties of the Number -428660

Four Hundred Twenty-Eight Thousand Six Hundred Sixty

Basics

Value: -428661 → -428660 → -428659

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 21433

Divisors: 1, 2, 4, 5, 10, 20, 21433, 42866, 85732, 107165

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101000101001110100

Octal: -1505164

Duodecimal: -188098

Hexadecimal: -68a74

Square: 183749395600

Square Root: 654.7213147591882

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

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = n! * ∑_{j=0..floor(n/2)} (-k/2)^j * (j+1)^n-j-1 / (j! * (n-2·j)!). A362394

E.g.f. satisfies A(x) = exp(x - x²/2·A(x)). A362395