Properties of the Number -21201211

Twenty-One Million Two Hundred One Thousand Two Hundred Eleven

Basics

Value: -21201212 → -21201211 → -21201210

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 103 × 205837

Divisors: 1, 103, 205837, 21201211

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -1010000111000000100111011

Octal: -120700473

Duodecimal: -7125277

Hexadecimal: -143813b

Square: 449491347866521

Square Root: 4604.47727760709

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 (2/(3·sqrt(1-4·z)-1+4·z))*((1-sqrt(1-4·z))/(2·z))^k with k=4. A172061

Number of 6Xn 0..1 arrays with rows unimodal and columns nondecreasing. A225013