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BaseRepresentation
bin11111010111011000010100
3120110201202222
4133113120110
54101102403
6452121512
7126613340
oct37273024
916421688
108222228
114706533
122906298
13191b631
141140620
15ac6338
hex7d7614

8222228 has 12 divisors (see below), whose sum is σ = 16444512. Its totient is φ = 3523800.

The previous prime is 8222213. The next prime is 8222239.

8222228 is nontrivially palindromic in base 10.

8222228 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 8222197 and 8222206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146798 + ... + 146853.

It is an arithmetic number, because the mean of its divisors is an integer number (1370376).

Almost surely, 28222228 is an apocalyptic number.

It is an amenable number.

8222228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8222228 is a wasteful number, since it uses less digits than its factorization.

8222228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293662 (or 293660 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

The square root of 8222228 is about 2867.4427631602. The cubic root of 8222228 is about 201.8350121604.

The spelling of 8222228 in words is "eight million, two hundred twenty-two thousand, two hundred twenty-eight".