Properties of the Number 8216

Eight Thousand Two Hundred Sixteen

Basics

Value: 8215 → 8216 → 8217

Parity: even

Prime: No

Previous Prime: 8209

Next Prime: 8219

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 13 × 79

Divisors: 1, 2, 4, 8, 13, 26, 52, 79, 104, 158

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000000011000

Octal: 20030

Duodecimal: 4908

Hexadecimal: 2018

Square: 67502656

Square Root: 90.64215354899729

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) = 6·n² + 2 for n > 0, a(0)=1. A5897

Number of integer partitions of n whose distinct parts are connected. A304716

Numbers k such that k and k+1 have the same sum of unitary divisors (A034448). A64125

Number of compositions of n into Fibonacci numbers (1 counted as single Fibonacci number). A76739

a(n) = ∑_d∣n φ(d)*2^n/d. A53635

Number of compositions of n into 4 ordered relatively prime parts. A742

Digits d in decimal expansion of n replaced with d³. A48390

Numbers which are the sum of two positive cubes and divisible by 13. A94447

Array read by antidiagonals: T(n,k) = number of nonequivalent dissections of a polygon into n k-gons by nonintersecting diagonals rooted at a cell up to rotation and reflection (k >= 3). A295259

Number of partitions of the graph G_n (defined below) into "strokes". A131520