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52145166 = 2310781223
BaseRepresentation
bin1100011011101…
…0110000001110
310122010020201110
43012322300032
5101322121131
65101352450
71202140503
oct306726016
9118106643
1052145166
1127486487
1215568726
13aa59938
146cd54aa
1548a0646
hex31bac0e

52145166 has 16 divisors (see below), whose sum is σ = 105266304. Its totient is φ = 17219064.

The previous prime is 52145147. The next prime is 52145183. The reversal of 52145166 is 66154125.

52145166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 39970 + ... + 41253.

It is an arithmetic number, because the mean of its divisors is an integer number (6579144).

Almost surely, 252145166 is an apocalyptic number.

52145166 is an abundant number, since it is smaller than the sum of its proper divisors (53121138).

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

52145166 is a wasteful number, since it uses less digits than its factorization.

52145166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81335.

The product of its digits is 7200, while the sum is 30.

The square root of 52145166 is about 7221.1609869882. The cubic root of 52145166 is about 373.5981222786.

The spelling of 52145166 in words is "fifty-two million, one hundred forty-five thousand, one hundred sixty-six".

Divisors: 1 2 3 6 107 214 321 642 81223 162446 243669 487338 8690861 17381722 26072583 52145166