Properties of the Number -19683

Nineteen Thousand Six Hundred Eighty-Three

Basics

Value: -19684 → -19683 → -19682

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁹

Divisors: 1, 3, 9, 27, 81, 243, 729, 2187, 6561, 19683

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110011100011

Octal: -46343

Duodecimal: -B483

Hexadecimal: -4ce3

Square: 387420489

Square Root: 140.29611541307906

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

Scaled Chebyshev U-polynomials evaluated at sqrt(3)/2; expansion of 1/(1 - 3·x + 3·x²). A57083

Expansion of bracket function. A748

a(n) = ∑_{j=0..floor(n/3)} (-1)^j*binomial(n,3·j+1). A57682

a(n) = ∑_{j=0..floor(n/3)} (-1)^j*binomial(n,3·j). A57681

Irregular triangle read by rows: mean version of Girard-Waring formula A210258, for m = 3 data values. A287768

Discriminant of n-th cyclotomic polynomial. A4124

Inverse binomial transform of A140962. A141413

Triangle T, read by rows, where matrix power T³ has powers of 3 in the secondary diagonal: [T³](n+1,n) = 3ⁿ⁺¹, with all 1's in the main diagonal and zeros elsewhere. A117252

Expansion of (1 - 3x)/(1 + 3·x²). A128019

G.f.: A(x) = 1 + x/exp( ∑_k>=1 (A((-1)^k*x) - 1)^k/k ). A157674