Properties of the Number 84218

Eighty-Four Thousand Two Hundred Eighteen

Basics

Value: 84217 → 84218 → 84219

Parity: even

Prime: No

Previous Prime: 84211

Next Prime: 84221

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 17 × 2477

Divisors: 1, 2, 17, 34, 2477, 4954, 42109, 84218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100100011111010

Octal: 244372

Duodecimal: 408A2

Hexadecimal: 148fa

Square: 7092671524

Square Root: 290.20337696174386

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

a(1)=1 then a(n)= (1/2) *(5·a(n-1)+1) if a(n-1) is odd, a(n)=3/2·a(n-1) otherwise. A86813

a(n) = sigma₄(n²)/sigma₂(n²). A84218