Properties of the Number 39913

Thirty-Nine Thousand Nine Hundred Thirteen

Basics

Value: 39912 → 39913 → 39914

Parity: odd

Prime: No

Previous Prime: 39901

Next Prime: 39929

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 167 × 239

Divisors: 1, 167, 239, 39913

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001101111101001

Octal: 115751

Duodecimal: 1B121

Hexadecimal: 9be9

Square: 1593047569

Square Root: 199.78238160558604

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 such that σ(k) = σ(k+4). A15863

T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal diagonal or antidiagonal neighbors and new values introduced sequentially from 0. A265656

Expansion of g.f. x/(1-7·x+8·x²). A152268

Numbers n such that n and n+4 are both brilliant numbers (A078972). A83285

Number of possible 3 X n arrangements of black and white squares that can form three consecutive rows in an n X n crossword puzzle. A133253

Number of 4 X n arrays containing n copies of 0..4-1 with no equal diagonal or antidiagonal neighbors and new values introduced sequentially from 0. A265658

Number of subsets of {1,2,...,n} such that no two elements differ by 1, 2, or 5. A375980

Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal diagonal or antidiagonal neighbors and new values introduced sequentially from 0. A265655

Triangular "Fibonacci array". A39913

Array read by antidiagonals, generated by the matrix M = [1,1,1;1,N,1;1,1,1]. A103280