Properties of the Number 82218

Eighty-Two Thousand Two Hundred Eighteen

Basics

Value: 82217 → 82218 → 82219

Parity: even

Prime: No

Previous Prime: 82217

Next Prime: 82219

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 71 × 193

Divisors: 1, 2, 3, 6, 71, 142, 193, 213, 386, 426

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100000100101010

Octal: 240452

Duodecimal: 3B6B6

Hexadecimal: 1412a

Square: 6759799524

Square Root: 286.7368131231147

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

Composite squarefree numbers n such that p + τ(n) divides n + φ(n), where p are the prime factors of n, τ(n) = A000005(n) and φ(n) = A000010(n). A229322

Square array T(i,j) in which for every k, the k-th partial sums of every row and column are divisible by k. Array read by antidiagonals, alternating upwards and downwards. Each entry is the least number not already used that fits the divisibility requirement. A82218