Properties of the Number 4186

Four Thousand One Hundred Eighty-Six

Basics

Value: 4185 → 4186 → 4187

Parity: even

Prime: No

Previous Prime: 4177

Next Prime: 4201

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 7 × 13 × 23

Divisors: 1, 2, 7, 13, 14, 23, 26, 46, 91, 161

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000001011010

Octal: 10132

Duodecimal: 250A

Hexadecimal: 105a

Square: 17522596

Square Root: 64.69930447848725

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

Hexagonal numbers: a(n) = n*(2·n-1). A384

Number of partitions of n into an even number of parts. A27187

Doubly triangular numbers: a(n) = n*(n+1)*(n²+n+2)/8. A2817

Centered 9-gonal (also known as nonagonal or enneagonal) numbers. Every third triangular number, starting with a(1)=1. A60544

Number of partitions of 2n of type EE (see Comments). A236913

Number of cycle types of conjugacy classes of all even permutations of n elements. A46682

13-gonal (or tridecagonal) numbers: a(n) = n*(11·n - 9)/2. A51865

Number of hierarchical ordered partitions of partitions. A141199

Number of divisors of nⁿ, or of A000312(n). A62319

a(n) = 2·n*(4·n - 1). A14635