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52091045 = 510979497
BaseRepresentation
bin1100011010110…
…1100010100101
310122000111110222
43012231202211
5101313403140
65100254125
71201523636
oct306554245
9118014428
1052091045
1127449856
1215541345
13aa3b106
146cbd88d
15488e5b5
hex31ad8a5

52091045 has 8 divisors (see below), whose sum is σ = 62572824. Its totient is φ = 41630464.

The previous prime is 52091029. The next prime is 52091057. The reversal of 52091045 is 54019025.

52091045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 279841 + 51811204 = 529^2 + 7198^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52091045 - 24 = 52091029 is a prime.

It is a Duffinian number.

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, 737 + ... + 10233.

It is an arithmetic number, because the mean of its divisors is an integer number (7821603).

Almost surely, 252091045 is an apocalyptic number.

It is an amenable number.

52091045 is a deficient number, since it is larger than the sum of its proper divisors (10481779).

52091045 is a wasteful number, since it uses less digits than its factorization.

52091045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10599.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 52091045 is about 7217.4126250340. The cubic root of 52091045 is about 373.4688261566.

The spelling of 52091045 in words is "fifty-two million, ninety-one thousand, forty-five".

Divisors: 1 5 1097 5485 9497 47485 10418209 52091045