Properties of the Number 38828

Thirty-Eight Thousand Eight Hundred Twenty-Eight

Basics

Value: 38827 → 38828 → 38829

Parity: even

Prime: No

Previous Prime: 38821

Next Prime: 38833

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 17 × 571

Divisors: 1, 2, 4, 17, 34, 68, 571, 1142, 2284, 9707

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001011110101100

Octal: 113654

Duodecimal: 1A578

Hexadecimal: 97ac

Square: 1507613584

Square Root: 197.04821744943547

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

Numbers k such that P = 2^k - 1 - ∑_{primes p<k} 2^p-1 is prime. A215891

E.g.f. satisfies: A(x) = x - log(1-A(x))*log(1+A(x)). A214759

a(n) = ∑_k=1..n μ(gcd(n, k)) * lcm(n, k) / gcd(n, k). A332658

Number of primes between n·10⁸ and (n+1)*10⁸. A38828

Number of nX4 0..1 arrays with each 1 adjacent to 3, 4 or 5 king-move neighboring 1s. A296986