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222230228 = 22115050687
BaseRepresentation
bin11010011111011…
…11011011010100
3120111011110120012
431033233123110
5423342331403
634015055352
75335632353
oct1517573324
9514143505
10222230228
11104496950
1262511558
133706b89c
142172b99a
151479aed8
hexd3ef6d4

222230228 has 12 divisors (see below), whose sum is σ = 424257792. Its totient is φ = 101013720.

The previous prime is 222230221. The next prime is 222230231. The reversal of 222230228 is 822032222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222230221) 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, 2525300 + ... + 2525387.

It is an arithmetic number, because the mean of its divisors is an integer number (35354816).

Almost surely, 2222230228 is an apocalyptic number.

It is an amenable number.

222230228 is a deficient number, since it is larger than the sum of its proper divisors (202027564).

222230228 is a wasteful number, since it uses less digits than its factorization.

222230228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050702 (or 5050700 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 222230228 is about 14907.3883695301. The cubic root of 222230228 is about 605.7141379219.

The spelling of 222230228 in words is "two hundred twenty-two million, two hundred thirty thousand, two hundred twenty-eight".

Divisors: 1 2 4 11 22 44 5050687 10101374 20202748 55557557 111115114 222230228