Properties of the Number 16492

Sixteen Thousand Four Hundred Ninety-Two

Basics

Value: 16491 → 16492 → 16493

Parity: even

Prime: No

Previous Prime: 16487

Next Prime: 16493

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 7 × 19 × 31

Divisors: 1, 2, 4, 7, 14, 19, 28, 31, 38, 62

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000001101100

Octal: 40154

Duodecimal: 9664

Hexadecimal: 406c

Square: 271986064

Square Root: 128.42118205342916

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 occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with every occupancy equal to zero or two. A221419

a(n) = ∑_{k=0..floor(n/4)} C(n-3·k,k+1). A98578

Array: T(m,n) = (F(m) + F(2·m) + ... + F(n·m))/F(m), by antidiagonals, where F = A000045 (Fibonacci numbers). A214984

Power ceiling array for the golden ratio, by antidiagonals. A214986

Numerators of continued fraction convergents to sqrt(883). A42706

a(n) is the number of vertices formed by n-secting the angles of a heptagon. A335758

Radius of inscribed circle within primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse. A89551

Power ceiling sequence of (golden ratio)⁵. A214994

Sum C(n-3k,k-1), k=0..floor(n/4). A99561

7 times heptagonal numbers: a(n) = 7·n*(5·n-3)/2. A152777