Properties of the Number -1640171

Six Hundred Forty Thousand One Hundred Seventy-One

Basics

Value: -1640172 → -1640171 → -1640170

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 13 × 71 × 1777

Divisors: 1, 13, 71, 923, 1777, 23101, 126167, 1640171

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110010000011011101011

Octal: -6203353

Duodecimal: -67120B

Hexadecimal: -1906eb

Square: 2690160909241

Square Root: 1280.6916100295184

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

Number of n X n binary arrays with all 1's connected only in a 0110-1100-0111 pattern in any orientation. A146799

Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 0110-1100-0111 pattern in any orientation. A146801