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52075745 = 522945481
BaseRepresentation
bin1100011010100…
…1110011100001
310121222201111022
43012221303201
5101312410440
65100055225
71201431221
oct306516341
9117881438
1052075745
1127439307
1215534515
13aa34167
146cb8081
154889cb5
hex31a9ce1

52075745 has 8 divisors (see below), whose sum is σ = 62765160. Its totient is φ = 41477760.

The previous prime is 52075741. The next prime is 52075757. The reversal of 52075745 is 54757025.

It is a happy number.

52075745 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 3243601 + 48832144 = 1801^2 + 6988^2 .

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

It is not a de Polignac number, because 52075745 - 22 = 52075741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52075741) 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 7 ways as a sum of consecutive naturals, for example, 21596 + ... + 23885.

It is an arithmetic number, because the mean of its divisors is an integer number (7845645).

Almost surely, 252075745 is an apocalyptic number.

It is an amenable number.

52075745 is a deficient number, since it is larger than the sum of its proper divisors (10689415).

52075745 is a wasteful number, since it uses less digits than its factorization.

52075745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45715.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 52075745 is about 7216.3526105644. The cubic root of 52075745 is about 373.4322579226.

The spelling of 52075745 in words is "fifty-two million, seventy-five thousand, seven hundred forty-five".

Divisors: 1 5 229 1145 45481 227405 10415149 52075745