Properties of the Number 38865

Thirty-Eight Thousand Eight Hundred Sixty-Five

Basics

Value: 38864 → 38865 → 38866

Parity: odd

Prime: No

Previous Prime: 38861

Next Prime: 38867

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 2591

Divisors: 1, 3, 5, 15, 2591, 7773, 12955, 38865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001011111010001

Octal: 113721

Duodecimal: 1A5A9

Hexadecimal: 97d1

Square: 1510488225

Square Root: 197.14208074381278

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

a(n) = ∑_k=0..n binomial(floor((n+1)/2), floor((k+1)/2)) * 4^k. A97175

Denominators of continued fraction convergents to sqrt(471). A41899

Number of trees with n nodes and 11 leaves. A55298

Squarefree numbers k for which Q(k) - 6·k/π² sets a new record minimum, where Q(x) is the number of squarefree numbers up to x. A339865

G.f. A(x) satisfies A(x)² = 1 + x + x·A(x)⁷. A295537

a(n) = (n+3)³ - n³. A38865