Properties of the Number 56742

Fifty-Six Thousand Seven Hundred Forty-Two

Basics

Value: 56741 → 56742 → 56743

Parity: even

Prime: No

Previous Prime: 56737

Next Prime: 56747

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 7 ² × 193

Divisors: 1, 2, 3, 6, 7, 14, 21, 42, 49, 98

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101110110100110

Octal: 156646

Duodecimal: 28A06

Hexadecimal: dda6

Square: 3219654564

Square Root: 238.20579338042978

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

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 489", based on the 5-celled von Neumann neighborhood. A272512

G.f. satisfies: A(x) = 1/(1 - x·A(x)/(1 - x²*A(x)/(1 - x³*A(x)/(1 - x⁴*A(x)/(1 - ...))))), a recursive continued fraction. A192728

a(n) = φ(2ⁿ - 1)/2. A56742