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52340687 = 719393539
BaseRepresentation
bin1100011110101…
…0011111001111
310122111011220222
43013222133033
5101344400222
65105501555
71203613520
oct307523717
9118434828
1052340687
11275aa373
12156418bb
13aac7929
146d46847
1548dd542
hex31ea7cf

52340687 has 8 divisors (see below), whose sum is σ = 62966400. Its totient is φ = 42502104.

The previous prime is 52340647. The next prime is 52340707. The reversal of 52340687 is 78604325.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52340687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52340647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196637 + ... + 196902.

It is an arithmetic number, because the mean of its divisors is an integer number (7870800).

Almost surely, 252340687 is an apocalyptic number.

52340687 is a deficient number, since it is larger than the sum of its proper divisors (10625713).

52340687 is a wasteful number, since it uses less digits than its factorization.

52340687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393565.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 52340687 is about 7234.6863788280. The cubic root of 52340687 is about 374.0644817185.

The spelling of 52340687 in words is "fifty-two million, three hundred forty thousand, six hundred eighty-seven".

Divisors: 1 7 19 133 393539 2754773 7477241 52340687