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52148693 = 283184271
BaseRepresentation
bin1100011011101…
…1100111010101
310122010102120002
43012323213111
5101322224233
65101421045
71202154002
oct306734725
9118112502
1052148693
11274890a3
121556a785
13aa5b41c
146cd68a9
1548a16e8
hex31bb9d5

52148693 has 4 divisors (see below), whose sum is σ = 52333248. Its totient is φ = 51964140.

The previous prime is 52148687. The next prime is 52148731. The reversal of 52148693 is 39684125.

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 52148693 - 212 = 52144597 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 (52148653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91853 + ... + 92418.

It is an arithmetic number, because the mean of its divisors is an integer number (13083312).

Almost surely, 252148693 is an apocalyptic number.

It is an amenable number.

52148693 is a deficient number, since it is larger than the sum of its proper divisors (184555).

52148693 is a wasteful number, since it uses less digits than its factorization.

52148693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184554.

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

The square root of 52148693 is about 7221.4051956666. The cubic root of 52148693 is about 373.6065452445.

The spelling of 52148693 in words is "fifty-two million, one hundred forty-eight thousand, six hundred ninety-three".

Divisors: 1 283 184271 52148693