Properties of the Number 2085

Two Thousand Eighty-Five

Basics

Value: 2084 → 2085 → 2086

Parity: odd

Prime: No

Previous Prime: 2083

Next Prime: 2087

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 139

Divisors: 1, 3, 5, 15, 139, 417, 695, 2085

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000100101

Octal: 4045

Duodecimal: 1259

Hexadecimal: 825

Square: 4347225

Square Root: 45.661800227323496

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

E-toothpick sequence (see Comments lines for definition). A161328

Number of ON states after n generations of cellular automaton rule described by the rulestring B1/S012345678. A151725

Toothpick sequence on the hexagonal net starting from a node. A182632

Numbers k for which nontrivial positive magic squares of exactly 5 different orders with magic sum k exist. For a definition of nontrivial positive magic squares, see A125005. A125012

T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 4 neighboring 1s. A297582

Numbers k such that p=k²+2 and p+2 are primes. A86381

Largest side, in increasing order, of primitive integer-sided triangles with A < B < C < 2*π/3 and such that FA + FB + FC is an integer where F is the Fermat point of the triangle. A336332

First integer > n reached under iteration of map x -> (5/3)*floor(x) when started at n, or -1 if no such integer is ever reached. A87705

Smaller member of a pair of sphenic twins, consecutive integers, each the product of three distinct primes. A215217

Discriminants of real quadratic fields of ERD-type with class groups of exponent 2 and discriminants of the form D = r²*k²+4k, k odd. A51992