Properties of the Number 7085

Seven Thousand Eighty-Five

Basics

Value: 7084 → 7085 → 7086

Parity: odd

Prime: No

Previous Prime: 7079

Next Prime: 7103

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 13 × 109

Divisors: 1, 5, 13, 65, 109, 545, 1417, 7085

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101110101101

Octal: 15655

Duodecimal: 4125

Hexadecimal: 1bad

Square: 50197225

Square Root: 84.17244204607586

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

Numbers m that are the hypotenuse of exactly 13 distinct integer-sided right triangles, i.e., m² can be written as a sum of two squares in 13 ways. A97102

Concentric 14-gonal numbers. A195145

Riordan array (1/(1-x·C(x)³), x·C(x)), C(x) the g.f. of A000108. A236830

Total number of ON cells at stage 2n of two-dimensional 5-neighbor outer totalistic cellular automaton defined by "Rule 451". A246318

a(n) = a(n-2) + a(n-5). A1687

a(n) = ceiling( ∑_i=1..n-1 a(i)/5 ), a(1)=1. A120170

T(n,k)=1/6 the number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock containing one of one value, four of another, and four of the last. A184477

Centered 28-gonal numbers. A195314

Sum of n-th row of triangle of primes: 2; 2 3 2; 2 3 5 3 2; 2 3 5 7 5 3 2; ...; where n-th row contains 2n+1 terms. A61802

G.f.: exp( ∑_n>=1 [∑_k>=1 k^2·n * x^k]ⁿ / n ), a power series in·with integer coefficients. A276752