Properties of the Number 86019

Eighty-Six Thousand Nineteen

Basics

Value: 86018 → 86019 → 86020

Parity: odd

Prime: No

Previous Prime: 86017

Next Prime: 86027

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 53 × 541

Divisors: 1, 3, 53, 159, 541, 1623, 28673, 86019

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101000000000011

Octal: 250003

Duodecimal: 41943

Hexadecimal: 15003

Square: 7399268361

Square Root: 293.2899589143822

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) = ∑_i=0..n ∑_j=0..n 2^max(i,j). A339771

Exponential Riordan array, defining orthogonal polynomials related to permutations without double falls. A182822

For p = prime(n), a(n) is the largest prime q such that pq is a base-2 pseudoprime; that is, 2^pq-1 = 1 mod pq; a(n) is 0 if no such prime exists. A86019