Properties of the Number 1368

One Thousand Three Hundred Sixty-Eight

Basics

Value: 1367 → 1368 → 1369

Parity: even

Prime: No

Previous Prime: 1367

Next Prime: 1373

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 19

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011000

Octal: 2530

Duodecimal: 960

Hexadecimal: 558

Square: 1871424

Square Root: 36.98648401781386

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

a(n) = n*(n+2) = (n+1)² - 1. A5563

Jordan function J₂(n) (a generalization of φ(n)). A7434

8 times triangular numbers: a(n) = 4·n*(n+1). A33996

Sub-perfect powers: perfect powers (squares, cubes etc., not including 1) minus 1. A45542

a(1)=1, a(n) = n·a(floor(n/2)). A98844

a(n) = σ(n)*φ(n). A62354

θ series of D₄ lattice; Fourier coefficients of Eisenstein series E_γ,2. A4011

a(n) = (prime(n)-1)*(prime(n)+1). A84920

Terms in an n X n spiral that do not lie on its principal diagonals. A137932

a(n) = n² - 2·n. A67998