Properties of the Number -212211

Two Hundred Twelve Thousand Two Hundred Eleven

Basics

Value: -212212 → -212211 → -212210

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 17 × 19 × 73

Divisors: 1, 3, 9, 17, 19, 51, 57, 73, 153, 171

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011110011110011

Octal: -636363

Duodecimal: -A2983

Hexadecimal: -33cf3

Square: 45033508521

Square Root: 460.6636517026278

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 written in fractional base 3/2. A24629

List of words over {1,2} with equal numbers of 1's and 2's. A214218

The largest even integer that can be written with n digits in base 3/2. A304272

The word 1 belongs to the sequence, and whenever a word w belongs to the sequence, then the words consisting of 1's and 2's whose run lengths transform equals w also belong to the sequence. A376637

Number of ON cells at n-th stage of three-dimensional version of the cellular automaton A160117 using cubes. A160379

Trajectory of the word "211" under the Watanabe tag system {11, 2122} described in A291067 (adapted to the alphabet {1,2}). A291075

List of Nyldon words over {1,2}. A328073

Representation of n in rational base 3/2. A383346

a(n) is the least multiple of n which uses only digits 1 and 2. a(n) = -1 if no such multiple exists. A216478