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56855163 = 3191099151
BaseRepresentation
bin1101100011100…
…0101001111011
310221222112121210
43120320221323
5104023331123
65350334203
71260155331
oct330705173
9127875553
1056855163
112a103142
121705a363
13ba18711
14779db51
154ed0e93
hex3638a7b

56855163 has 16 divisors (see below), whose sum is σ = 80537600. Its totient is φ = 35575200.

The previous prime is 56855153. The next prime is 56855203. The reversal of 56855163 is 36155865.

It is not a de Polignac number, because 56855163 - 25 = 56855131 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56855143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1638 + ... + 10788.

It is an arithmetic number, because the mean of its divisors is an integer number (5033600).

Almost surely, 256855163 is an apocalyptic number.

56855163 is a deficient number, since it is larger than the sum of its proper divisors (23682437).

56855163 is a wasteful number, since it uses less digits than its factorization.

56855163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9282.

The product of its digits is 108000, while the sum is 39.

The square root of 56855163 is about 7540.2362695077. The cubic root of 56855163 is about 384.5238685965.

The spelling of 56855163 in words is "fifty-six million, eight hundred fifty-five thousand, one hundred sixty-three".

Divisors: 1 3 19 57 109 327 2071 6213 9151 27453 173869 521607 997459 2992377 18951721 56855163