Properties of the Number 85904

Eighty-Five Thousand Nine Hundred Four

Basics

Value: 85903 → 85904 → 85905

Parity: even

Prime: No

Previous Prime: 85903

Next Prime: 85909

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 7 × 13 × 59

Divisors: 1, 2, 4, 7, 8, 13, 14, 16, 26, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100111110010000

Octal: 247620

Duodecimal: 41868

Hexadecimal: 14f90

Square: 7379497216

Square Root: 293.09384162755794

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

Triangle read by rows: T(n,k) = number of closed meander systems of order n with k<=n components. A8828

Triangle of numerators T(n,k) in the matrix {T(n,k)/(n-k)!,n>=k>=0} that transforms diagonals of the array (A174480) of coefficients in successive iterations of x·exp(x). A174485

Column 3 of triangle A174485. A174489

Number of "semiperiodic" binary words of length n. A209284

Numbers k such that k, k+1 and k+2 are 7-smooth, i.e., all prime divisors <= 7 (A002473). A85904