Properties of the Number 39886

Thirty-Nine Thousand Eight Hundred Eighty-Six

Basics

Value: 39885 → 39886 → 39887

Parity: even

Prime: No

Previous Prime: 39883

Next Prime: 39887

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 ² × 11 × 37

Divisors: 1, 2, 7, 11, 14, 22, 37, 49, 74, 77

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001101111001110

Octal: 115716

Duodecimal: 1B0BA

Hexadecimal: 9bce

Square: 1590892996

Square Root: 199.71479664761947

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

Sum of 11 positive 9th powers. A4800

Numbers k such that sopfr(k + sopfr(k)) = sopfr(k) + sopfr(sopfr(k)), where sopfr = A001414. A376851

G.f.: exp( ∑_n>=1 A113184(n²)*xⁿ/n ), where A113184(n) = difference between sum of odd divisors of n and sum of even divisors of n. A224340

Number of solutions to +-1 +- 5 +- 12 +- ... +- n*(3·n-1)/2 = 0. A292474

Number of binary strings of length n with no substrings equal to 0001, 1010, or 1100. A164487

a(n) = prime(a(n-1)) + abs(prime(n)-a(n-1)). A86912

Number of winning positions for the next player (a, b, c) where 1 <= a, b, c <= n in "Divisor Nim" (see comments). A383226

Number of partitions satisfying cn(0,5) + cn(1,5) <= cn(2,5) + cn(3,5) and cn(0,5) + cn(4,5) <= cn(2,5) + cn(3,5). A39886