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47905028 = 2211976257
BaseRepresentation
bin1011011010111…
…1100100000100
310100010211100022
42312233210010
544230430103
64430434312
71121120543
oct266574404
9110124308
1047905028
112504a836
1214062998
139c03992
14651015a
154314138
hex2daf904

47905028 has 6 divisors (see below), whose sum is σ = 83833806. Its totient is φ = 23952512.

The previous prime is 47905001. The next prime is 47905037. The reversal of 47905028 is 82050974.

It is a happy number.

47905028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 47582404 + 322624 = 6898^2 + 568^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5988125 + ... + 5988132.

It is an arithmetic number, because the mean of its divisors is an integer number (13972301).

Almost surely, 247905028 is an apocalyptic number.

It is an amenable number.

47905028 is a deficient number, since it is larger than the sum of its proper divisors (35928778).

47905028 is a wasteful number, since it uses less digits than its factorization.

47905028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976261 (or 11976259 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 47905028 is about 6921.3458228873. The cubic root of 47905028 is about 363.1842720100.

The spelling of 47905028 in words is "forty-seven million, nine hundred five thousand, twenty-eight".

Divisors: 1 2 4 11976257 23952514 47905028