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52069747 = 192740513
BaseRepresentation
bin1100011010100…
…0010101110011
310121222102021011
43012220111303
5101312212442
65100011351
71201404562
oct306502563
9117872234
1052069747
1127434854
1215530b57
13aa31502
146cb5bd9
154888117
hex31a8573

52069747 has 4 divisors (see below), whose sum is σ = 54810280. Its totient is φ = 49329216.

The previous prime is 52069733. The next prime is 52069757. The reversal of 52069747 is 74796025.

52069747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52069747 - 215 = 52036979 is a prime.

It is a super-2 number, since 2×520697472 = 5422517105288018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52069757) 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 3 ways as a sum of consecutive naturals, for example, 1370238 + ... + 1370275.

It is an arithmetic number, because the mean of its divisors is an integer number (13702570).

Almost surely, 252069747 is an apocalyptic number.

52069747 is a deficient number, since it is larger than the sum of its proper divisors (2740533).

52069747 is a wasteful number, since it uses less digits than its factorization.

52069747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740532.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 52069747 is about 7215.9370146919. The cubic root of 52069747 is about 373.4179202645.

The spelling of 52069747 in words is "fifty-two million, sixty-nine thousand, seven hundred forty-seven".

Divisors: 1 19 2740513 52069747