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52134689 = 192743931
BaseRepresentation
bin1100011011100…
…0001100100001
310122002201100102
43012320030201
5101321302224
65101232145
71202065115
oct306701441
9118081312
1052134689
1127479622
1215562655
13aa54c39
146cd1745
15489c4ae
hex31b8321

52134689 has 4 divisors (see below), whose sum is σ = 54878640. Its totient is φ = 49390740.

The previous prime is 52134683. The next prime is 52134749. The reversal of 52134689 is 98643125.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52134689 - 224 = 35357473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52134683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1371947 + ... + 1371984.

It is an arithmetic number, because the mean of its divisors is an integer number (13719660).

Almost surely, 252134689 is an apocalyptic number.

It is an amenable number.

52134689 is a deficient number, since it is larger than the sum of its proper divisors (2743951).

52134689 is a wasteful number, since it uses less digits than its factorization.

52134689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743950.

The product of its digits is 51840, while the sum is 38.

The square root of 52134689 is about 7220.4355131806. The cubic root of 52134689 is about 373.5730995072.

The spelling of 52134689 in words is "fifty-two million, one hundred thirty-four thousand, six hundred eighty-nine".

Divisors: 1 19 2743931 52134689