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52652139 = 3295871031
BaseRepresentation
bin1100100011011…
…0100001101011
310200002000011020
43020312201223
5101434332024
65120303523
71206351531
oct310664153
9120060136
1052652139
11277a2371
1215771ba3
13aba6617
146dc8151
154950979
hex323686b

52652139 has 16 divisors (see below), whose sum is σ = 72817920. Its totient is φ = 33800480.

The previous prime is 52652113. The next prime is 52652141. The reversal of 52652139 is 93125625.

52652139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 52652139 - 216 = 52586603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52652189) 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, 50554 + ... + 51584.

It is an arithmetic number, because the mean of its divisors is an integer number (4551120).

Almost surely, 252652139 is an apocalyptic number.

52652139 is a deficient number, since it is larger than the sum of its proper divisors (20165781).

52652139 is a wasteful number, since it uses less digits than its factorization.

52652139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650.

The product of its digits is 16200, while the sum is 33.

The square root of 52652139 is about 7256.1793665813. The cubic root of 52652139 is about 374.8049688074.

The spelling of 52652139 in words is "fifty-two million, six hundred fifty-two thousand, one hundred thirty-nine".

Divisors: 1 3 29 87 587 1031 1761 3093 17023 29899 51069 89697 605197 1815591 17550713 52652139