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47392988 = 2211848247
BaseRepresentation
bin1011010011001…
…0100011011100
310022011210221212
42310302203130
544113033423
64411443552
71113555656
oct264624334
9108153855
1047392988
1124830065
1213a565b8
139a848b6
1464196d6
154262578
hex2d328dc

47392988 has 6 divisors (see below), whose sum is σ = 82937736. Its totient is φ = 23696492.

The previous prime is 47392981. The next prime is 47392993. The reversal of 47392988 is 88929374.

It is a happy number.

47392988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47392981) 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 as a sum of consecutive naturals, namely, 5924120 + ... + 5924127.

It is an arithmetic number, because the mean of its divisors is an integer number (13822956).

Almost surely, 247392988 is an apocalyptic number.

It is an amenable number.

47392988 is a deficient number, since it is larger than the sum of its proper divisors (35544748).

47392988 is a wasteful number, since it uses less digits than its factorization.

47392988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11848251 (or 11848249 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 47392988 is about 6884.2565321173. The cubic root of 47392988 is about 361.8856511333.

The spelling of 47392988 in words is "forty-seven million, three hundred ninety-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 11848247 23696494 47392988