Properties of the Number 1366

One Thousand Three Hundred Sixty-Six

Basics

Value: 1365 → 1366 → 1367

Parity: even

Prime: No

Previous Prime: 1361

Next Prime: 1367

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 683

Divisors: 1, 2, 683, 1366

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010110

Octal: 2526

Duodecimal: 95A

Hexadecimal: 556

Square: 1865956

Square Root: 36.959437225152655

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

Expansion of (1 - x)/((1 + x)*(1 - 2·x)). A78008

Number of strict knapsack partitions of n. A275972

a(2·n) = 2·a(2·n-1), a(2·n+1) = 2·a(2·n)-1. A5578

Fifth spoke of a hexagonal spiral. A56109

Number of double-free integer partitions of n. A323092

Numbers that are the sum of 8 positive 5th powers. A3353

a(n) = (4ⁿ + 2)/3. A47849

a(n) = n² - 3. A28872

a(n) = C(n,0) + C(n,3) + ... + C(n,3[n/3]). A24493

a(n) = a(n-1) + a(n-2) - 2, a(0) = 4, a(1) = 3. A211