Properties of the Number -121980

One Hundred Twenty-One Thousand Nine Hundred Eighty

Basics

Value: -121981 → -121980 → -121979

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 5 × 19 × 107

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11101110001111100

Octal: -356174

Duodecimal: -5A710

Hexadecimal: -1dc7c

Square: 14879120400

Square Root: 349.2563528412905

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

Column 4 of an array closely related to A083480. (Both arrays have shape sequence A083479). A89574

Second pentagonal numbers that are interprime. A205881