Properties of the Number 39926

Thirty-Nine Thousand Nine Hundred Twenty-Six

Basics

Value: 39925 → 39926 → 39927

Parity: even

Prime: No

Previous Prime: 39901

Next Prime: 39929

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 19963

Divisors: 1, 2, 19963, 39926

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001101111110110

Octal: 115766

Duodecimal: 1B132

Hexadecimal: 9bf6

Square: 1594085476

Square Root: 199.81491435826305

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

Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=2, 0<=k<=floor(n/2)², read by rows. A236679

Number of non-equivalent ways to place 4 non-attacking kings on an n X n board. A279113

a(n) = 9973·n + 10007. A101442

Indices where the cumulative sum of cos(2k+1)^2k+1 reaches a record high value. A389559

O.g.f. A(x) satisfies: A(x) = 1/(1 - x * (d/dx x + x²*A(x)) ). A338306

Number of permutations of [n] that avoid the shuffle pattern s-k-t, where s = 12 and t = 1234. A324136

Random digits obtained from a random physical process. A39926

Smallest integer m such that gcd{x | sum of proper divisors of·is m} is equal to n, when there are at least two such x's. A253302