Properties of the Number -219

Two Hundred Nineteen

Basics

Value: -220 → -219 → -218

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 73

Divisors: 1, 3, 73, 219

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -11011011

Octal: -333

Duodecimal: -163

Hexadecimal: -db

Square: 47961

Square Root: 14.798648586948742

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

Expansion of ∏_{k > 0} 1/(1 + x^prime(k)). A48165

Expansion of (1-x-x^N)/((1-x)(1-x²)(1-x³)...(1-x^N)) for N = 4. A60023

Expansion of e.g.f. exp(x/(1 + x)²). A318215

G.f.: ∏_m>=1 1/(1+x^m)^A000009(m). A89254

Second differences of A000463; first differences of A188652. A188653

Coefficient array for certain numerator polynomials N5(n,x), n >= 0 (rising powers of x) used for quintinomials (also called pentanomials). A63422

Triangle T(n,k) = 1 - A176337(k) - A176337(n-k) + A176337(n) read by rows. A176339

Expansion of g.f. A(x) satisfying ∑_n>=0 ∏_k=1..n (x^k + 2·A(x)) = 1 + 3*∑_n>=1 x^n*(n+1/2). A370142

a(n) = A325977(A228058(n)). A389217

Dirichlet inverse of sequence b(n) = 1-A318833(n). A340367