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4228188 = 223352349
BaseRepresentation
bin10000001000010001011100
321221210222120
4100020101130
52040300223
6230342540
750640036
oct20102134
97853876
104228188
112428778
1214baa50
13b506b3
147c0c56
15587be3
hex40845c

4228188 has 12 divisors (see below), whose sum is σ = 9865800. Its totient is φ = 1409392.

The previous prime is 4228177. The next prime is 4228199. The reversal of 4228188 is 8818224.

It is an interprime number because it is at equal distance from previous prime (4228177) and next prime (4228199).

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

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176163 + ... + 176186.

It is an arithmetic number, because the mean of its divisors is an integer number (822150).

Almost surely, 24228188 is an apocalyptic number.

It is an amenable number.

4228188 is an abundant number, since it is smaller than the sum of its proper divisors (5637612).

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

4228188 is a wasteful number, since it uses less digits than its factorization.

4228188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352356 (or 352354 counting only the distinct ones).

The product of its digits is 8192, while the sum is 33.

The square root of 4228188 is about 2056.2558206605. The cubic root of 4228188 is about 161.7030071468.

The spelling of 4228188 in words is "four million, two hundred twenty-eight thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 352349 704698 1057047 1409396 2114094 4228188