Properties of the Number 16859

Sixteen Thousand Eight Hundred Fifty-Nine

Basics

Value: 16858 → 16859 → 16860

Parity: odd

Prime: No

Previous Prime: 16843

Next Prime: 16871

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 23 × 733

Divisors: 1, 23, 733, 16859

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100000111011011

Octal: 40733

Duodecimal: 990B

Hexadecimal: 41db

Square: 284225881

Square Root: 129.84221193433206

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) = floor(n*φ¹⁴), where φ is the golden ratio, A001622. A4929

Number of integer solutions to (x₁)² + (x₂)² + ... + (x₇)² <= n. A341396

Number of partitions p of n such that (number of even numbers in p) > 2*(number of odd numbers in p). A241645

Number of lattice points inside or on the 7-dimensional hypersphere x₁² + x₂² + x₃² + x₄² + x₅² + x₆² + x₇² = 10ⁿ. A373885

Irregular triangle read by rows: T(n,k) is the number of distinct tilings by squares of an n X n square lattice that contain k nodes unconnected to any of their neighbors. A226997

Number of self-inverse permutations p on [n] where the maximal displacement of an element equals 6. A238917

Length of shortest prefix of the Kolakoski sequence K (A000002) containing all blocks of length n that appear in K. A283511

Number of n-node rooted labeled trees with deg <= 4 at root and outdegree <= 2 elsewhere. A36661

Numbers whose base-5 representation contains exactly three 1's and three 4's. A45262

a(n) is the least nonnegative integer k such that (k² + prime(n)²)/2 is prime but (k² + prime(i)²)/2 is not prime for i < n. A358804