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55112105 = 5103110691
BaseRepresentation
bin1101001000111…
…1000110101001
310211200222121002
43102033012221
5103102041410
65245124345
71236305456
oct322170651
9124628532
1055112105
11291225a4
12165596b5
13b558219
14746882d
154c897a5
hex348f1a9

55112105 has 8 divisors (see below), whose sum is σ = 66204864. Its totient is φ = 44042800.

The previous prime is 55112081. The next prime is 55112119. The reversal of 55112105 is 50121155.

It is a happy number.

55112105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55112105 - 218 = 54849961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 191 + ... + 10500.

It is an arithmetic number, because the mean of its divisors is an integer number (8275608).

Almost surely, 255112105 is an apocalyptic number.

It is an amenable number.

55112105 is a deficient number, since it is larger than the sum of its proper divisors (11092759).

55112105 is a wasteful number, since it uses less digits than its factorization.

55112105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11727.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 55112105 is about 7423.7527571977. The cubic root of 55112105 is about 380.5534525333.

The spelling of 55112105 in words is "fifty-five million, one hundred twelve thousand, one hundred five".

Divisors: 1 5 1031 5155 10691 53455 11022421 55112105