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9228 = 223769
BaseRepresentation
bin10010000001100
3110122210
42100030
5243403
6110420
735622
oct22014
913583
109228
116a2a
125410
13427b
143512
152b03
hex240c

9228 has 12 divisors (see below), whose sum is σ = 21560. Its totient is φ = 3072.

The previous prime is 9227. The next prime is 9239. The reversal of 9228 is 8229.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (9221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373 + ... + 396.

It is an amenable number.

9228 is an abundant number, since it is smaller than the sum of its proper divisors (12332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10780).

9228 is a wasteful number, since it uses less digits than its factorization.

9228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 774 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 9228 is about 96.0624796682. The cubic root of 9228 is about 20.9750270035.

Subtracting from 9228 its reverse (8229), we obtain a palindrome (999).

It can be divided in two parts, 92 and 28, that added together give a triangular number (120 = T15).

The spelling of 9228 in words is "nine thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 769 1538 2307 3076 4614 9228