Properties of the Number 66210

Sixty-Six Thousand Two Hundred Ten

Basics

Value: 66209 → 66210 → 66211

Parity: even

Prime: No

Previous Prime: 66191

Next Prime: 66221

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 2207

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 2207, 4414

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001010100010

Octal: 201242

Duodecimal: 32396

Hexadecimal: 102a2

Square: 4383764100

Square Root: 257.3130389234094

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

Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are < p/2. A282721

Sum of parts of the n-th subsection of the head of the last section of the set of partitions of any odd integer >= 2n+1. A182995

Number of rooted trees with total weight n, where the weight of a node at height k is k (with the root considered to be at level 0). A117356

a(n) = ((2·n)^2·n+2 - 1)/(4·n² - 1). A66210

Number of ladders in all peakless Motzkin paths of length n (n>=0). A171854