Properties of the Number 38887

Thirty-Eight Thousand Eight Hundred Eighty-Seven

Basics

Value: 38886 → 38887 → 38888

Parity: odd

Prime: No

Previous Prime: 38873

Next Prime: 38891

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 37 × 1051

Divisors: 1, 37, 1051, 38887

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001011111100111

Octal: 113747

Duodecimal: 1A607

Hexadecimal: 97e7

Square: 1512198769

Square Root: 197.19787017105432

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 with property that 6·k+1 is prime and uses only digits 2 and 3. A153166

a(n) = π(φ(p(P(n)))) = A000720(A000010(A000041(A000040(n)))). A247087

Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 2X3 U in any orientation. A146057

Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 2X3 U in any orientation. A146059

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 1), (0, 0, -1), (0, 1, 0), (1, -1, 1)}. A148411

15 is a square mod p. A38887

Base-10 numbers k whose number of divisors equals the number of divisors in R(k), where k is written in all bases from base-2 to base-10 and R(k), the digit reversal of k, is read as a number in the same base. A346113

Indices of primes in sequence defined by A(0) = 37, A(n) = 10·A(n-1) + 17 for n > 0. A101846

Numbers k such that 3·10^k + 8·R_k - 1 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A102979

Primes of form 6k+1 that use only digits 2 and 3. A153165