Properties of the Number -218089

Two Hundred Eighteen Thousand Eighty-Nine

Basics

Value: -218090 → -218089 → -218088

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 467 ²

Divisors: 1, 467, 218089

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110101001111101001

Octal: -651751

Duodecimal: -A6261

Hexadecimal: -353e9

Square: 47562811921

Square Root: 467

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

Squares which are palindromes in base 15. A30075

Numbers k such that σ(k)*φ(k) is squarefree. A65299

Numbers k of the form q², q = prime, such that k-2 is a prime. A146981

Smaller prime power associated with record gap in A167186. A167188

a(n) is the number k such that A383653(n)⁴ is the sum of squares of k consecutive integers. A383654

a(n) = prime² and digits of prime do not appear in a(n). A30088

Odd squares not in A113659. A103962

Squares that becomes a prime number when prefixed with a 9. A167724

Numbers n such that (the sum of the divisors of n) plus (the sum of the squares of the divisors of n) plus (the sum of the cubes of the divisors of n) is a prime number. A220586

Squares for which both the sum of the digits and the product of the digits is a triangular number. A118490