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47384459091 = 3217309702347
BaseRepresentation
bin101100001000010101…
…010111011101010011
311112022022012221000100
4230020111113131103
51234020410142331
633433525223443
73265142154024
oct541025273523
9145268187010
1047384459091
11191063234a2
129224b61b83
134611c18198
142417204c4b
151374e44ae6
hexb08557753

47384459091 has 12 divisors (see below), whose sum is σ = 72470349432. Its totient is φ = 29731425216.

The previous prime is 47384459077. The next prime is 47384459093. The reversal of 47384459091 is 19095448374.

47384459091 is a `hidden beast` number, since 4 + 7 + 3 + 8 + 44 + 590 + 9 + 1 = 666.

47384459091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47384459091 - 219 = 47383934803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47384459093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154851021 + ... + 154851326.

It is an arithmetic number, because the mean of its divisors is an integer number (6039195786).

Almost surely, 247384459091 is an apocalyptic number.

47384459091 is a deficient number, since it is larger than the sum of its proper divisors (25085890341).

47384459091 is a wasteful number, since it uses less digits than its factorization.

47384459091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309702370 (or 309702367 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 47384459091 in words is "forty-seven billion, three hundred eighty-four million, four hundred fifty-nine thousand, ninety-one".

Divisors: 1 3 9 17 51 153 309702347 929107041 2787321123 5264939899 15794819697 47384459091