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52907689 = 176746451
BaseRepresentation
bin1100100111010…
…0111010101001
310200112222201001
43021310322221
5102021021224
65125555001
71211464552
oct311647251
9120488631
1052907689
112795736a
1215875a61
13ac65a33
147053329
1549a1544
hex3274ea9

52907689 has 8 divisors (see below), whose sum is σ = 56857248. Its totient is φ = 49051200.

The previous prime is 52907683. The next prime is 52907693. The reversal of 52907689 is 98670925.

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 52907689 - 29 = 52907177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52907683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22087 + ... + 24364.

It is an arithmetic number, because the mean of its divisors is an integer number (7107156).

Almost surely, 252907689 is an apocalyptic number.

It is an amenable number.

52907689 is a deficient number, since it is larger than the sum of its proper divisors (3949559).

52907689 is a wasteful number, since it uses less digits than its factorization.

52907689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46535.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 52907689 is about 7273.7671807668. The cubic root of 52907689 is about 375.4103691324.

The spelling of 52907689 in words is "fifty-two million, nine hundred seven thousand, six hundred eighty-nine".

Divisors: 1 17 67 1139 46451 789667 3112217 52907689