Properties of the Number -1221381

Two Hundred Twenty-One Thousand Three Hundred Eighty-One

Basics

Value: -1221382 → -1221381 → -1221380

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 19387

Divisors: 1, 3, 7, 9, 21, 63, 19387, 58161, 135709, 174483

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Duodecimal: -4AA999

Hexadecimal: -12a305

Square: 1491771547161

Square Root: 1105.1610742330731

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

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

No sequences found.