Properties of the Number 9216

Nine Thousand Two Hundred Sixteen

Basics

Value: 9215 → 9216 → 9217

Parity: even

Prime: No

Previous Prime: 9209

Next Prime: 9221

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ¹⁰ × 3 ²

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10010000000000

Octal: 22000

Duodecimal: 5400

Hexadecimal: 2400

Square: 84934656

Square Root: 96

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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: Yes

Fermat Number: No

Cullen Number: No

OEIS Sequences

Smallest number with exactly n divisors. A5179

Numbers k of the form 2ⁱ*3^j, where i and j >= 1. A33845

The minimal numbers: sequence A005179 arranged in increasing order. A7416

Numbers k such that φ(k) divides k. A7694

a(n) = 9·2ⁿ. A5010

a(n) = solution to the "Select All, Copy, Paste" problem: Given the ability to type a single letter, or to type individual "Select All", "Copy" or "Paste" command keystrokes, what is the maximal number of letters of text that can be obtained with n keystrokes? A178715

Multiples of 16 containing a 16 in their decimal representation. A121036

Products of superprimorials (A006939). A181818

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

a(n) = σ(n)². A72861