Properties of the Number -222222

Two Hundred Twenty-Two Thousand Two Hundred Twenty-Two

Basics

Value: -222223 → -222222 → -222221

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: Yes

Factorization: 2 × 3 × 7 × 11 × 13 × 37

Divisors: 1, 2, 3, 6, 7, 11, 13, 14, 21, 22

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110010000001110

Octal: -662016

Duodecimal: -A8726

Hexadecimal: -3640e

Square: 49382617284

Square Root: 471.40428508871236

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

Repdigit numbers, or numbers whose digits are all equal. A10785

a(n) = 2*(10ⁿ - 1)/9. A2276

Smallest multiple of n using only digits 0 and 2. A78241

Expansion of x*(1+x)/((1-x)*(1-10·x²)). A94626

Numbers > 9 with all digits the same. A14181

List of imprimitive words over the alphabet {2,3}. A213974

RATS: Reverse Add Then Sort the digits applied to previous term, starting with 6999. A209879

Smallest squarefree palindrome with exactly n distinct prime factors. A46399

Non-primitive words on {1,2,3}. A239018

Append d digits d after each digit d in decimal expansion of n. A48377