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228554148 = 22319046179
BaseRepresentation
bin11011001111101…
…11010110100100
3120221001202100110
431213313112210
5432002213043
634402413020
75443451424
oct1547672644
9527052313
10228554148
11108016129
1264661170
1338474154
14224d6484
15150e9b33
hexd9f75a4

228554148 has 12 divisors (see below), whose sum is σ = 533293040. Its totient is φ = 76184712.

The previous prime is 228554113. The next prime is 228554201. The reversal of 228554148 is 841455822.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9523078 + ... + 9523101.

Almost surely, 2228554148 is an apocalyptic number.

It is an amenable number.

228554148 is an abundant number, since it is smaller than the sum of its proper divisors (304738892).

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

228554148 is a wasteful number, since it uses less digits than its factorization.

228554148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19046186 (or 19046184 counting only the distinct ones).

The product of its digits is 102400, while the sum is 39.

The square root of 228554148 is about 15118.0074083855. The cubic root of 228554148 is about 611.4060087482.

The spelling of 228554148 in words is "two hundred twenty-eight million, five hundred fifty-four thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 19046179 38092358 57138537 76184716 114277074 228554148