Properties of the Number -428

Four Hundred Twenty-Eight

Basics

Value: -429 → -428 → -427

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 107

Divisors: 1, 2, 4, 107, 214, 428

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110101100

Octal: -654

Duodecimal: -2B8

Hexadecimal: -1ac

Square: 183184

Square Root: 20.688160865577203

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

G.f.: Im((i·x; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1). A292043

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min(i(i+1)/2, j(j+1)/2) (A106255). A204024

Numerators of coefficients in expansion of x/arctan(x)-1 (even powers only). A216272

Expansion of 1 / ∑_{k in Z} x^3·k / (1 - x^5·k+1). A375064

McKay-Thompson series of class 15B for Monster. A58509

McKay-Thompson series of class 28C for Monster. A58608

McKay-Thompson series of class 24f for the Monster group with a(0) = -2. A93067

G.f. A(x) satisfies: A(x) = 1 + x - x²*A(x)². A307374

Expansion of tan(sin(x))*x/2. A24225

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 318", based on the 5-celled von Neumann neighborhood. A271253