Properties of the Number -8285

Two Hundred Eighty-Five

Basics

Value: -8286 → -8285 → -8284

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 1657

Divisors: 1, 5, 1657, 8285

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000001011101

Octal: -20135

Duodecimal: -4965

Hexadecimal: -205d

Square: 68641225

Square Root: 91.02197536858887

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

Values of n such that L(10) and N(10) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227448

Values of n such that L(8) and N(8) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A226928

a(n) = 4*(n+1)*n + 5. A78370

Numbers k > 1 such that, in base 4, k and k² contain the same digits in the same proportion. A61658

Numbers of the form (4k+3)²+4 or (4k+5)²-8. A214393

Number of series-reduced free pure symmetric identity multifunctions (with empty expressions allowed) with one atom and n positions. A317880

Expansion of ∑_k>0 x^3·k/(1-x^k)⁴. A363607

Antiharmonic mean of the divisors of A228023(n) (the n-th primitive antiharmonic number). A228024

Rounded volume of a regular octahedron with edge length n. A71400

Expansion of e.g.f. (1/x) * Series_Reversion( x·exp(-x·B(x)⁴) ), where B(x) = 1 + x·B(x)⁴ is the g.f. of A002293. A382038