Properties of the Number 61366

Sixty-One Thousand Three Hundred Sixty-Six

Basics

Value: 61365 → 61366 → 61367

Parity: even

Prime: No

Previous Prime: 61363

Next Prime: 61379

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 61 × 503

Divisors: 1, 2, 61, 122, 503, 1006, 30683, 61366

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110111110110110

Octal: 167666

Duodecimal: 2B61A

Hexadecimal: efb6

Square: 3765785956

Square Root: 247.7216179504728

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 simple unlabeled graphs on n nodes with exactly 3 connected components that are trees or cycles. A215983

G.f.: A(x) = F(x·G(x)²) where F(x) = G(x·F(x)) = 1 + x·F(x)³ is the g.f. of A001764 and G(x) = F(x/G(x)) = 1 + x·G(x)² is the g.f. of A000108 (Catalan). A153391

Numbers n such that σ(2*φ(n)) = 2*σ(n). A137733

Numbers k such that φ(k)+σ(k) is a perfect cube. A61366