Properties of the Number 53978

Fifty-Three Thousand Nine Hundred Seventy-Eight

Basics

Value: 53977 → 53978 → 53979

Parity: even

Prime: No

Previous Prime: 53959

Next Prime: 53987

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 × 137 × 197

Divisors: 1, 2, 137, 197, 274, 394, 26989, 53978

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101001011011010

Octal: 151332

Duodecimal: 272A2

Hexadecimal: d2da

Square: 2913624484

Square Root: 232.3316594870359

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

G.f.: (1 - x/(1 - x²/(1 - x³/(1 - x⁴/(1 - ...))))) / (1 + x/(1 + x²/(1 + x³/(1 + x⁴/(1 + ...))))), a continued fraction. A285635

a(n) = T(3n,n), where T = Delannoy triangle (A008288). A26001

Continued fraction expansion of limit_m->infinity [r_m], where r₁=1, r_m+1= r₁ + 1/(r₂ + 1/(r₃ +...1/(r_m-1 + 1/r_m)...)). A53978

Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302873