Properties of the Number -197721

One Hundred Ninety-Seven Thousand Seven Hundred Twenty-One

Basics

Value: -197722 → -197721 → -197720

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 2441

Divisors: 1, 3, 9, 27, 81, 2441, 7323, 21969, 65907, 197721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110000010001011001

Octal: -602131

Duodecimal: -96509

Hexadecimal: -30459

Square: 39093593841

Square Root: 444.65829577328253

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

E.g.f. A(x) satisfies: [xⁿ] A(x)^n*(n+1) = 2·n * [x^n-1] A(x)^n*(n+1) for n>=1. A300873

Expansion of g.f. A(x) satisfying A(x)² = A( x*(1+x)*A(x) ). A374572