Properties of the Number 38986

Thirty-Eight Thousand Nine Hundred Eighty-Six

Basics

Value: 38985 → 38986 → 38987

Parity: even

Prime: No

Previous Prime: 38977

Next Prime: 38993

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 × 101 × 193

Divisors: 1, 2, 101, 193, 202, 386, 19493, 38986

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001100001001010

Octal: 114112

Duodecimal: 1A68A

Hexadecimal: 984a

Square: 1519908196

Square Root: 197.44872752185566

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

T(n,k)=Number of nXk 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal. A232335

T(n,k)=Majority value maps: number of nXk binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..3 nXk array. A220313

T(n,k)=Majority value maps: number of nXk binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nXk array. A220369

a(n) = 3·a(n-1) - a(n-2) - 2·a(n-3) for n > 2, a(0)=1, a(1)=4, a(2)=10. A316528

Majority value maps: number of n X 2 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..3 n X 2 array. A220309

a(n) = (10·n³ - 9·n² + 2·n)/3 + 1. A34721

Number of 3 X n binary arrays with top left value 1 and no two ones adjacent horizontally, diagonally or antidiagonally. A228662

Number of n X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal. A232330

Number of n X 5 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal. A232332

Number of 5Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal. A232339