Properties of the Number -128991

One Hundred Twenty-Eight Thousand Nine Hundred Ninety-One

Basics

Value: -128992 → -128991 → -128990

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 19 × 31 × 73

Divisors: 1, 3, 19, 31, 57, 73, 93, 219, 589, 1387

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111011111011111

Octal: -373737

Duodecimal: -62793

Hexadecimal: -1f7df

Square: 16638678081

Square Root: 359.15317066677835

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

Array read by antidiagonals: T(m,n) read in binary is a palindrome with m runs of n ones separated by single zeros. A249544

Number of perifusenes with one internal vertex. A38384