Properties of the Number 16887

Sixteen Thousand Eight Hundred Eighty-Seven

Basics

Value: 16886 → 16887 → 16888

Parity: odd

Prime: No

Previous Prime: 16883

Next Prime: 16889

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 13 × 433

Divisors: 1, 3, 13, 39, 433, 1299, 5629, 16887

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100000111110111

Octal: 40767

Duodecimal: 9933

Hexadecimal: 41f7

Square: 285170769

Square Root: 129.94999038091538

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

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 nXk array. A219128

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..2 nXk array. A217457

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every consecutive three elements in every row and column having exactly two distinct values, and in every diagonal and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order. A252695

Numbers with multiplicative persistence value 6. A46515

G.f. satisfies A(x) = 1 + x·A(x * (1 + x²)). A360885

Squarefree n such that the elliptic curve n·y² = x³ - x arising in the "congruent number" problem has rank 3. A62693

a(n) = 100·n² - n. A157659

Numbers that can be represented in more than one way as p²+p·q+q² with p and q primes, p<=q. A349987

a(n) = 169·n² - 13. A158550

Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..2 n X 2 array. A217451