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225000228 = 22318750019
BaseRepresentation
bin11010110100100…
…11101100100100
3120200101012021210
431122103230210
5430100001403
634154311420
75401320225
oct1532235444
9520335253
10225000228
11106009002
1263428570
13377cb63b
1421c4d24c
1514b46b03
hexd693b24

225000228 has 12 divisors (see below), whose sum is σ = 525000560. Its totient is φ = 75000072.

The previous prime is 225000227. The next prime is 225000247. The reversal of 225000228 is 822000522.

225000228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (225000221) 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, 9374998 + ... + 9375021.

Almost surely, 2225000228 is an apocalyptic number.

It is an amenable number.

225000228 is an abundant number, since it is smaller than the sum of its proper divisors (300000332).

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

225000228 is a wasteful number, since it uses less digits than its factorization.

225000228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18750026 (or 18750024 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 225000228 is about 15000.0075999981. The cubic root of 225000228 is about 608.2204050005.

The spelling of 225000228 in words is "two hundred twenty-five million, two hundred twenty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 18750019 37500038 56250057 75000076 112500114 225000228