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228585470 = 2559387433
BaseRepresentation
bin11011001111111…
…10111111111110
3120221010100022112
431213332333332
5432004213340
634403214022
75443641641
oct1547767776
9527110275
10228585470
11108037713
1264677312
1338485499
1422503a58
1515104065
hexd9feffe

228585470 has 16 divisors (see below), whose sum is σ = 418428720. Its totient is φ = 89884224.

The previous prime is 228585457. The next prime is 228585479. The reversal of 228585470 is 74585822.

228585470 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228585479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193127 + ... + 194306.

It is an arithmetic number, because the mean of its divisors is an integer number (26151795).

Almost surely, 2228585470 is an apocalyptic number.

228585470 is a deficient number, since it is larger than the sum of its proper divisors (189843250).

228585470 is a wasteful number, since it uses less digits than its factorization.

228585470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387499.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 228585470 is about 15119.0432898382. The cubic root of 228585470 is about 611.4339373367.

The spelling of 228585470 in words is "two hundred twenty-eight million, five hundred eighty-five thousand, four hundred seventy".

Divisors: 1 2 5 10 59 118 295 590 387433 774866 1937165 3874330 22858547 45717094 114292735 228585470