Properties of the Number 85086

Eighty-Five Thousand Eighty-Six

Basics

Value: 85085 → 85086 → 85087

Parity: even

Prime: No

Previous Prime: 85081

Next Prime: 85087

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 29 × 163

Divisors: 1, 2, 3, 6, 9, 18, 29, 58, 87, 163

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110001011110

Octal: 246136

Duodecimal: 412A6

Hexadecimal: 14c5e

Square: 7239627396

Square Root: 291.6950462383617

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

Sum of the squarefree parts of the partitions of n into 7 parts. A309482

Triangle read by rows: T(n,k) = (A002110(n) + A002110(k)) / A002110(k), 1 <= k <= n. A370135

Row 3 of A328464: a(n) = A276156(8n - 4) / 6. A328466

Number of (7+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250661

a(n) is the least multiple of n such that a(n) = 1 mod k for all integers k with 1 < k < n and k relatively prime to n. A55006

Smallest x > 1 such that x^prime(n) == 1 mod(prime(i)) 3<=i<=n. A71555

Number of topologically distinct ways to dissect a rectangle into n rectangles. A49021

a(1) = 1; if n is composite then a(n) = ∑_{i < n, i not prime} a(i), else if n is prime then a(n) = ∑_{j < n, j is a noncomposite} a(j). A85086