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52775261 = 711685393
BaseRepresentation
bin1100100101010…
…0100101011101
310200022021001022
43021110211131
5102002302021
65123053525
71210403510
oct311244535
9120267038
1052775261
1127876920
12158112a5
13ac1a686
14701ad77
1549771ab
hex325495d

52775261 has 8 divisors (see below), whose sum is σ = 65797824. Its totient is φ = 41123520.

The previous prime is 52775251. The next prime is 52775269. The reversal of 52775261 is 16257725.

It is a happy number.

52775261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52775261 - 26 = 52775197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52775269) 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, 342620 + ... + 342773.

It is an arithmetic number, because the mean of its divisors is an integer number (8224728).

Almost surely, 252775261 is an apocalyptic number.

It is an amenable number.

52775261 is a deficient number, since it is larger than the sum of its proper divisors (13022563).

52775261 is a wasteful number, since it uses less digits than its factorization.

52775261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685411.

The product of its digits is 29400, while the sum is 35.

The square root of 52775261 is about 7264.6583539765. The cubic root of 52775261 is about 375.0968899271.

The spelling of 52775261 in words is "fifty-two million, seven hundred seventy-five thousand, two hundred sixty-one".

Divisors: 1 7 11 77 685393 4797751 7539323 52775261