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52779343 = 244721569
BaseRepresentation
bin1100100101010…
…1100101001111
310200022110122111
43021111211033
5102002414333
65123124451
71210421431
oct311254517
9120273574
1052779343
11278799a1
1215813727
13ac1c4a6
14701c651
1549784cd
hex325594f

52779343 has 4 divisors (see below), whose sum is σ = 52803360. Its totient is φ = 52755328.

The previous prime is 52779323. The next prime is 52779379. The reversal of 52779343 is 34397725.

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 52779343 - 225 = 19224911 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52779296 and 52779305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52779313) 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, 8338 + ... + 13231.

It is an arithmetic number, because the mean of its divisors is an integer number (13200840).

Almost surely, 252779343 is an apocalyptic number.

52779343 is a deficient number, since it is larger than the sum of its proper divisors (24017).

52779343 is a wasteful number, since it uses less digits than its factorization.

52779343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24016.

The product of its digits is 158760, while the sum is 40.

The square root of 52779343 is about 7264.9392977505. The cubic root of 52779343 is about 375.1065605316.

The spelling of 52779343 in words is "fifty-two million, seven hundred seventy-nine thousand, three hundred forty-three".

Divisors: 1 2447 21569 52779343