Properties of the Number 1085

One Thousand Eighty-Five

Basics

Value: 1084 → 1085 → 1086

Parity: odd

Prime: No

Previous Prime: 1069

Next Prime: 1087

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 × 7 × 31

Divisors: 1, 5, 7, 31, 35, 155, 217, 1085

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000111101

Octal: 2075

Duodecimal: 765

Hexadecimal: 43d

Square: 1177225

Square Root: 32.93933818400121

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 partitions of n into distinct parts >= 2. A25147

a(n) = n² - 4. A28347

Numerator of 1/4 - 1/n². A61037

Numbers k such that the k-th partition number A000041(k) is prime. A46063

Number of sublattices of index n in generic 3-dimensional lattice. A1001

Products of exactly three distinct odd primes. A46389

Number of partitions of n in which the sequence of frequencies of the summands is nonincreasing. A100882

Number of partitions of n into distinct parts, the least being 1. A96765

a(n)=T(n,n), array T as in A049687. Also a(n)=T(2n,2n), array T given by A049639. A49691

Number of active cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 614", based on the 5-celled von Neumann neighborhood. A72272