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52980186 = 2374726839
BaseRepresentation
bin1100101000011…
…0100111011010
310200200200011010
43022012213122
5102030331221
65131314350
71212216120
oct312064732
9120620133
1052980186
11279a6886
12158ab9b6
13ac8ca2c
147071910
1549b7c76
hex32869da

52980186 has 32 divisors (see below), whose sum is σ = 123678720. Its totient is φ = 14814576.

The previous prime is 52980181. The next prime is 52980203. The reversal of 52980186 is 68108925.

52980186 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52980181) by changing a digit.

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, 11446 + ... + 15393.

It is an arithmetic number, because the mean of its divisors is an integer number (3864960).

Almost surely, 252980186 is an apocalyptic number.

52980186 is an abundant number, since it is smaller than the sum of its proper divisors (70698534).

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

52980186 is a wasteful number, since it uses less digits than its factorization.

52980186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26898.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 52980186 is about 7278.7489309633. The cubic root of 52980186 is about 375.5817601248.

The spelling of 52980186 in words is "fifty-two million, nine hundred eighty thousand, one hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 47 94 141 282 329 658 987 1974 26839 53678 80517 161034 187873 375746 563619 1127238 1261433 2522866 3784299 7568598 8830031 17660062 26490093 52980186