Properties of the Number -2212

Two Hundred Twelve

Basics

Value: -2213 → -2212 → -2211

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 7 × 79

Divisors: 1, 2, 4, 7, 14, 28, 79, 158, 316, 553

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100010100100

Octal: -4244

Duodecimal: -1344

Hexadecimal: -8a4

Square: 4892944

Square Root: 47.031904065219386

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 g.f. ∏_n>=1 (1-xⁿ)*(1-x^5·n)/(1-x^3·n)². A54274

Expansion of (1-x)/(1+x²+x³). A78032

Coefficients of mock modular form H₁² of type 2A. A256058

Expansion of (1-x)/(1+2·x+x²-x³). A78064

Numbers that contain only 1's and 2's. Nonempty binary strings of length n in lexicographic order. A7931

a(n) = 1 + n + 2·n². A84849

a(n) = n² + 3. A117950

Number of pairwise coprime strict compositions of n, where a singleton is not considered coprime unless it is (1). A337561

Number of binary words of length n (beginning with 0) whose autocorrelation function is the indicator of a singleton. A45690

G.f. satisfies: A(x) = 1 + x·A(x) + x³*A(x)³. A71879