Properties of the Number 20162

Twenty Thousand One Hundred Sixty-Two

Basics

Value: 20161 → 20162 → 20163

Parity: even

Prime: No

Previous Prime: 20161

Next Prime: 20173

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 × 17 × 593

Divisors: 1, 2, 17, 34, 593, 1186, 10081, 20162

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111011000010

Octal: 47302

Duodecimal: B802

Hexadecimal: 4ec2

Square: 406506244

Square Root: 141.9929575718458

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

a(n) = 12·a(n-1) - a(n-2), with a(0) = 2 and a(1) = 12. A87800

Array read by antidiagonals: T(n,k) is the number of Hamiltonian rooted triangulations with n internal nodes and k + 3 external nodes, n >= 0, k >= 0. A391153

Numerators of continued fraction convergents to sqrt(653). A42254

Rows sums of triangle A152072. A152074

Number of interior balls in a truncated tetrahedral arrangement. A92966

Number of triples (a, b, c) with gcd(a, b, c) = 1 and -n <= a,b,c <= n. A175549

Places of records of A188550. A188592

Least number m such that there exist exactly n pairs of numbers (a,b), 0 < a < b < m, such that a+b, a+m, and b+m are all squares. A246766

Numbers k such that both numbers k and k+1 are in the sequence A248903. A248894

a(n) = ∑_k=1..n k² * (k+1)!. A280556