Properties of the Number 80284

Eighty Thousand Two Hundred Eighty-Four

Basics

Value: 80283 → 80284 → 80285

Parity: even

Prime: No

Previous Prime: 80279

Next Prime: 80287

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 20071

Divisors: 1, 2, 4, 20071, 40142, 80284

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011100110011100

Octal: 234634

Duodecimal: 3A564

Hexadecimal: 1399c

Square: 6445520656

Square Root: 283.34431351272957

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

T(n,k)=Number of length n+5 0..k arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms. A250081

Number of nonempty subsets of {1, 2, ..., n} with <=8 pairwise coprime elements. A187269

Number of length n+5 0..7 arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms. A250080

Number of length 1+5 0..n arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms. A250082

Numbers n such that (π/e)ⁿ is closer to its nearest integer than any value of (π/e)^k for 1 <= k < n. A80284