Properties of the Number 38785

Thirty-Eight Thousand Seven Hundred Eighty-Five

Basics

Value: 38784 → 38785 → 38786

Parity: odd

Prime: No

Previous Prime: 38783

Next Prime: 38791

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 × 7757

Divisors: 1, 5, 7757, 38785

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001011110000001

Octal: 113601

Duodecimal: 1A541

Hexadecimal: 9781

Square: 1504276225

Square Root: 196.93907687404246

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

Numerator of fraction equal to the continued fraction [ 2, 3, 5, ...prime(n) ]. A36247

Denominator of fraction equal to the continued fraction [p(n); p(n-1),...,5,3,2]. A83659

Composite numbers whose prime factors contain no digits other than 5 and 7. A36320

Number of terms of A072873 less than or equal to 10ⁿ. A267757

a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n+1-k), where k = [ (n+1)/2 ], s = (Fibonacci numbers), t = (Lucas numbers). A24459

s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = (Lucas numbers). A25079

Number of nonisomorphic circulant self-complementary directed p²-graphs, indexed by odd primes p. A38785