Properties of the Number 16917

Sixteen Thousand Nine Hundred Seventeen

Basics

Value: 16916 → 16917 → 16918

Parity: odd

Prime: No

Previous Prime: 16903

Next Prime: 16921

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5639

Divisors: 1, 3, 5639, 16917

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100001000010101

Octal: 41025

Duodecimal: 9959

Hexadecimal: 4215

Square: 286184889

Square Root: 130.06536818077285

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) is the number of nonequivalent ways (mod D₃) to place k points on an n X n X n triangular grid so that no two of them are on the same row, column or diagonal (n >= 1). A283113

G.f.: (1 + x³ + x⁴ + ... + x¹² + x¹⁵)/∏_i=1..10 (1 - xⁱ). A3403

Number of nonequivalent ways (mod D₃) to place 5 points on an n X n X n triangular grid so that no two of them are on the same row, column or diagonal. A283116

Powers of fourth root of 20 rounded down. A18102

Numerators of continued fraction convergents to sqrt(549). A42050

Left border of triangle A137629. A137631

Number of mobiles (circular rooted trees) with n nodes and 5 leaves. A55343

Indices of primes in sequence defined by A(0) = 59, A(n) = 10·A(n-1) - 21 for n > 0. A101583

Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 86. A31584

Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 3,1 4,1 4,2 5,3 polyhexes in any orientation on a planar nXnXn triangular grid. A155329