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47845868 = 2271708781
BaseRepresentation
bin1011011010000…
…1000111101100
310100000211012012
42312201013230
544222031433
64425300352
71120453220
oct266410754
9110024165
1047845868
112500a344
12140346b8
139bb2a85
1464d6780
154301848
hex2da11ec

47845868 has 12 divisors (see below), whose sum is σ = 95691792. Its totient is φ = 20505360.

The previous prime is 47845867. The next prime is 47845901. The reversal of 47845868 is 86854874.

47845868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

47845868 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (47845867) 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, 854363 + ... + 854418.

It is an arithmetic number, because the mean of its divisors is an integer number (7974316).

Almost surely, 247845868 is an apocalyptic number.

It is an amenable number.

47845868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47845868 is a wasteful number, since it uses less digits than its factorization.

47845868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708792 (or 1708790 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 50.

The square root of 47845868 is about 6917.0707673118. The cubic root of 47845868 is about 363.0347064135.

The spelling of 47845868 in words is "forty-seven million, eight hundred forty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 1708781 3417562 6835124 11961467 23922934 47845868