Properties of the Number 19873

Nineteen Thousand Eight Hundred Seventy-Three

Basics

Value: 19872 → 19873 → 19874

Parity: odd

Prime: No

Previous Prime: 19867

Next Prime: 19889

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 7 × 17 × 167

Divisors: 1, 7, 17, 119, 167, 1169, 2839, 19873

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110110100001

Octal: 46641

Duodecimal: B601

Hexadecimal: 4da1

Square: 394936129

Square Root: 140.97162835123953

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

Length of n-th string generated by a Kolakoski(7,1) rule starting with a(1)=1. A95343

Nonnegative values·of solutions (x, y) to the Diophantine equation x²+(x+167)² = y². A130608

Structured octagonal anti-diamond numbers (vertex structure 7). A100187

Number of partitions of n into parts with no prime gaps in their factorization. A137792

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

Number of unordered full binary trees with labels from a set of n labels. A220452

Real part of (n + i)⁴. A272870

Number of 2 X 2 matrices with all elements in {-n,..,0,..,n} with determinant = 2·permanent. A280343

Difference between squares of legs of primitive Pythagorean triangles, sorted (with multiplicity). A127923

a(n) = 3n³ - 2n² + n - 1. A130885