Properties of the Number 66218

Sixty-Six Thousand Two Hundred Eighteen

Basics

Value: 66217 → 66218 → 66219

Parity: even

Prime: No

Previous Prime: 66191

Next Prime: 66221

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 113 × 293

Divisors: 1, 2, 113, 226, 293, 586, 33109, 66218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001010101010

Octal: 201252

Duodecimal: 323A2

Hexadecimal: 102aa

Square: 4384823524

Square Root: 257.3285837212804

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

Numbers that are the sum of 9 positive 10th powers. A4809

a(n) = 36·n² - 8·n - 2 (n >=1). A304834

Number of 4-ary rooted trees with n nodes and height at most 5. A36610

Numbers k such that σ(k) = ∑_{j∣k, j<k} σ(j). A66218