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228347488 = 2531230189
BaseRepresentation
bin11011001110001…
…00111001100000
3120220200020212101
431213010321200
5431424104423
634354140144
75441631055
oct1547047140
9526606771
10228347488
11107994936
1264581654
1338401075
142248102c
15150a87ad
hexd9c4e60

228347488 has 24 divisors (see below), whose sum is σ = 464063040. Its totient is φ = 110490240.

The previous prime is 228347477. The next prime is 228347489. The reversal of 228347488 is 884743822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228347489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114103 + ... + 116086.

It is an arithmetic number, because the mean of its divisors is an integer number (19335960).

Almost surely, 2228347488 is an apocalyptic number.

It is an amenable number.

228347488 is an abundant number, since it is smaller than the sum of its proper divisors (235715552).

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

228347488 is a wasteful number, since it uses less digits than its factorization.

228347488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230230 (or 230222 counting only the distinct ones).

The product of its digits is 688128, while the sum is 46.

The square root of 228347488 is about 15111.1709672017. The cubic root of 228347488 is about 611.2216742129.

The spelling of 228347488 in words is "two hundred twenty-eight million, three hundred forty-seven thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 230189 460378 920756 1841512 3683024 7135859 7366048 14271718 28543436 57086872 114173744 228347488