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222828222 = 2347790171
BaseRepresentation
bin11010100100000…
…01011010111110
3120112021211212010
431102001122332
5424021000342
634035552050
75344002651
oct1522013276
9515254763
10222828222
11104865161
126275b626
133721ab26
1421845898
151486829c
hexd4816be

222828222 has 16 divisors (see below), whose sum is σ = 455139072. Its totient is φ = 72695640.

The previous prime is 222828211. The next prime is 222828247.

222828222 is nontrivially palindromic in base 10.

222828222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222828222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394804 + ... + 395367.

It is an arithmetic number, because the mean of its divisors is an integer number (28446192).

Almost surely, 2222828222 is an apocalyptic number.

222828222 is an abundant number, since it is smaller than the sum of its proper divisors (232310850).

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

222828222 is a wasteful number, since it uses less digits than its factorization.

222828222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790223.

The product of its digits is 8192, while the sum is 30.

The square root of 222828222 is about 14927.4318621791. The cubic root of 222828222 is about 606.2569518883.

The spelling of 222828222 in words is "two hundred twenty-two million, eight hundred twenty-eight thousand, two hundred twenty-two".

Divisors: 1 2 3 6 47 94 141 282 790171 1580342 2370513 4741026 37138037 74276074 111414111 222828222