Properties of the Number -218142

Two Hundred Eighteen Thousand One Hundred Forty-Two

Basics

Value: -218143 → -218142 → -218141

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 12119

Divisors: 1, 2, 3, 6, 9, 18, 12119, 24238, 36357, 72714

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110101010000011110

Octal: -652036

Duodecimal: -A62A6

Hexadecimal: -3541e

Square: 47585932164

Square Root: 467.05674173487745

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

A255460(2ⁿ-1). A255461

a(n) = (1/2) * ∑_{k=0..floor(n/4)} 2^k * binomial(2·n-6·k+2,2·k+1). A387601