Properties of the Number -1408

Four Hundred Eight

Basics

Value: -1409 → -1408 → -1407

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ⁷ × 11

Divisors: 1, 2, 4, 8, 11, 16, 22, 32, 44, 64

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10110000000

Octal: -2600

Duodecimal: -994

Hexadecimal: -580

Square: 1982464

Square Root: 37.52332607858744

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

∏_n>=1 1 / (1 - xⁿ)^a(n/n!) = 1 + tanh(x). A354066

Numerators of coefficients of integrated Chebyshev polynomials T(n,x) (in increasing order of powers of x). A164658

Coefficients in the expansion of 1/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = 9/5. A279781

E.g.f. (1/5!)*sin⁵(x)/cos(x) (coefficients of odd powers only). A278194

Alternating row sums of A066448. A350310

a(n) = A048106(A001405(n)). A48244

McKay-Thompson series of class 44a for Monster. A58680

Triangular array, see Mathematica code. A122773

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 86", based on the 5-celled von Neumann neighborhood. A270128

Coefficients in the expansion of 1/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = e/2. A279591