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47288166 = 2317345557
BaseRepresentation
bin1011010001100…
…0111101100110
310021222111011120
42310120331212
544101210131
64405314410
71112641242
oct264307546
9107874146
1047288166
1124769332
1213a05a06
139a48c83
1463cd422
154241496
hex2d18f66

47288166 has 16 divisors (see below), whose sum is σ = 95125104. Its totient is φ = 15671264.

The previous prime is 47288147. The next prime is 47288167. The reversal of 47288166 is 66188274.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47288167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21741 + ... + 23816.

It is an arithmetic number, because the mean of its divisors is an integer number (5945319).

Almost surely, 247288166 is an apocalyptic number.

47288166 is an abundant number, since it is smaller than the sum of its proper divisors (47836938).

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

47288166 is a wasteful number, since it uses less digits than its factorization.

47288166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45735.

The product of its digits is 129024, while the sum is 42.

The square root of 47288166 is about 6876.6391500500. The cubic root of 47288166 is about 361.6186525721.

The spelling of 47288166 in words is "forty-seven million, two hundred eighty-eight thousand, one hundred sixty-six".

Divisors: 1 2 3 6 173 346 519 1038 45557 91114 136671 273342 7881361 15762722 23644083 47288166