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52845142 = 2731121763
BaseRepresentation
bin1100100110010…
…1101001010110
310200102210220111
43021211221112
5102012021032
65124353234
71211114320
oct311455126
9120383814
1052845142
1127914379
121584581a
13ac4341c
147038610
15498cc47
hex3265a56

52845142 has 16 divisors (see below), whose sum is σ = 93514752. Its totient is φ = 21917160.

The previous prime is 52845131. The next prime is 52845157. The reversal of 52845142 is 24154825.

52845142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 60448 + ... + 61315.

It is an arithmetic number, because the mean of its divisors is an integer number (5844672).

Almost surely, 252845142 is an apocalyptic number.

52845142 is a deficient number, since it is larger than the sum of its proper divisors (40669610).

52845142 is a wasteful number, since it uses less digits than its factorization.

52845142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121803.

The product of its digits is 12800, while the sum is 31.

The square root of 52845142 is about 7269.4664178329. The cubic root of 52845142 is about 375.2623751967.

Adding to 52845142 its reverse (24154825), we get a palindrome (76999967).

The spelling of 52845142 in words is "fifty-two million, eight hundred forty-five thousand, one hundred forty-two".

Divisors: 1 2 7 14 31 62 217 434 121763 243526 852341 1704682 3774653 7549306 26422571 52845142