Properties of the Number 17285

Seventeen Thousand Two Hundred Eighty-Five

Basics

Value: 17284 → 17285 → 17286

Parity: odd

Prime: No

Previous Prime: 17257

Next Prime: 17291

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 3457

Divisors: 1, 5, 3457, 17285

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100001110000101

Octal: 41605

Duodecimal: A005

Hexadecimal: 4385

Square: 298771225

Square Root: 131.47243057006287

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 T(n,k) read by rows: number of LCO forests of size n with k leaves, 1 <= k <= n. A175136

T(n,k)=Number of nXk binary arrays with top left value 1 and no two ones adjacent horizontally, vertically, diagonally or antidiagonally. A228506

(p·q - 1)/2 where p and q are consecutive odd primes. A102770

p-INVERT of (0,0,1,2,3,4,5,...), the nonnegative integers A000027 preceded by one zero, where p(S) = 1 - S - S². A290991

Coordination sequence for σ-CrFe, Position Xa. A9962

Numbers k such that the continued fraction for sqrt(k) has period 57. A20396

Number of n X 4 binary arrays with top left value 1 and no two ones adjacent horizontally, vertically, diagonally or antidiagonally. A228502

Least inverse of A073454: Smallest m such that m divided by the primes up to m have exactly n repeated residues. A274320

Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 17. A51982

Number of repeated remainders arising when n is divided by all primes up to n: a(n) = π(n) - A073453(n). A73454