Properties of the Number -1212201

Two Hundred Twelve Thousand Two Hundred One

Basics

Value: -1212202 → -1212201 → -1212200

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 367 ²

Divisors: 1, 3, 9, 367, 1101, 3303, 134689, 404067, 1212201

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100100111111100101001

Octal: -4477451

Duodecimal: -4A5609

Hexadecimal: -127f29

Square: 1469431264401

Square Root: 1101

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

Squares whose largest decimal digit is 2. A277946

Powers of 3 written in base 4. A4658

Non-palindromic squares which when written backwards remain square (and still have the same number of digits). A35090

Squares composed of digits {0,1,2}, not ending with zero. A58412

Write n in binary then square as if written in base 10. A63009

Perfect squares k such that each decimal digit of k is equal to the difference of at least two other digits of k. A255893

Squares k² such that reverse(k)² = reverse(k²), excluding squares of palindromes. A64021

a(n) = (10^{n + 1} + 10^{n - min{v₂(n}, v₅(n)}) + 1)ⁿ, where v_p(n) indicates the p-adic valuation of n. A379243

n is odd and divisible by number of divisors of n and sum of digits of n. A57530

Squares in every base >=3 (involving no carries and no digit apart from 0, 1 and 2). A66139