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51106105 = 519618819
BaseRepresentation
bin1100001011110…
…1000100111001
310120011110101201
43002331010321
5101040343410
65023214201
71160252251
oct302750471
9116143351
1051106105
1126936856
1215147361
13a7849cb
146b04961
15474783a
hex30bd139

51106105 has 16 divisors (see below), whose sum is σ = 65620800. Its totient is φ = 38093760.

The previous prime is 51106093. The next prime is 51106117. The reversal of 51106105 is 50160115.

51106105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51106093) and next prime (51106117).

It is a de Polignac number, because none of the positive numbers 2k-51106105 is a prime.

It is a super-2 number, since 2×511061052 = 5223667936542050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 15 ways as a sum of consecutive naturals, for example, 1386 + ... + 10204.

It is an arithmetic number, because the mean of its divisors is an integer number (4101300).

Almost surely, 251106105 is an apocalyptic number.

It is an amenable number.

51106105 is a deficient number, since it is larger than the sum of its proper divisors (14514695).

51106105 is a wasteful number, since it uses less digits than its factorization.

51106105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8904.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 51106105 is about 7148.8534045678. The cubic root of 51106105 is about 371.0999771727.

The spelling of 51106105 in words is "fifty-one million, one hundred six thousand, one hundred five".

Divisors: 1 5 19 61 95 305 1159 5795 8819 44095 167561 537959 837805 2689795 10221221 51106105