Properties of the Number 85169

Eighty-Five Thousand One Hundred Sixty-Nine

Basics

Value: 85168 → 85169 → 85170

Parity: odd

Prime: No

Previous Prime: 85159

Next Prime: 85193

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 7 × 23 ³

Divisors: 1, 7, 23, 161, 529, 3703, 12167, 85169

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110010110001

Octal: 246261

Duodecimal: 41355

Hexadecimal: 14cb1

Square: 7253758561

Square Root: 291.83728343033897

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

Number of pairings of the first 2n positive integers so that the absolute differences of each pair are different. A60963

a(n) = 7·n³. A244727

Composite numbers whose exponents in their canonical factorization lie in the geometric progression 1, 3, 9, ... A102838

Numbers c such that a + b + c = d are abcd quadruples in the "abcd-conjecture" with a < b < c < d, all |a|, b, c, d are pairwise coprime, the quality q of the quadruple has q > 1, term a = +/- 1 = A376149(n) and term b = A376144(n) (with repetitions and sorted by c then b). A376143

Least positive integer b such that (n, b, n+b) is an abc-hit. A272236

Least positive integer b such that b > n and (n, b, n+b) is an abc-hit. A272239

a(n) is the (n-1)-st frugal number in base n. A379539

T(n,n+1), array T as in A047060. A47066

Permutation of natural numbers induced by the Catalan bijection gma085169 acting on symbolless S-expressions encoded by A014486/A063171. A85169