Properties of the Number 1086

One Thousand Eighty-Six

Basics

Value: 1085 → 1086 → 1087

Parity: even

Prime: No

Previous Prime: 1069

Next Prime: 1087

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 181

Divisors: 1, 2, 3, 6, 181, 362, 543, 1086

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000111110

Octal: 2076

Duodecimal: 766

Hexadecimal: 43e

Square: 1179396

Square Root: 32.95451410656816

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

Smith (or joke) numbers: composite numbers k such that sum of digits of k = sum of digits of prime factors of k (counted with multiplicity). A6753

a(n) = ∑_d∣n (-1)^d-1*d². A321543

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

a(n) = n² - 3. A28872

Numbers k whose abundance is 12: σ(k) - 2·k = 12. A141545

Number of compositions (ordered partitions) of n where no pair of adjacent part sizes is relatively prime. A178470

Table read by ascending antidiagonals: T(n, m) giving total degree of n-th-order elementary symmetric polynomials in m variables. A50446

Indices n of ("bad") Gram points g(n) for which (-1)ⁿ Z(g(n)) < 0, where Z(t) is the Riemann-Siegel Z-function. A114856

Numbers k such that k² has an odd number of digits and the middle digit is 9. A279429

4-dimensional analog of centered polygonal numbers. A6322