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52839031 = 77548433
BaseRepresentation
bin1100100110010…
…0001001110111
310200102111112011
43021210021313
5102011322111
65124305051
71211060440
oct311441167
9120374464
1052839031
112790a823
1215842187
13ac406cb
1470362c7
15498b021
hex3264277

52839031 has 4 divisors (see below), whose sum is σ = 60387472. Its totient is φ = 45290592.

The previous prime is 52839011. The next prime is 52839049. The reversal of 52839031 is 13093825.

It is a happy number.

52839031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52839031 - 25 = 52838999 is a prime.

It is a super-2 number, since 2×528390312 = 5583926394037922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52838984 and 52839002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52839001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3774210 + ... + 3774223.

It is an arithmetic number, because the mean of its divisors is an integer number (15096868).

Almost surely, 252839031 is an apocalyptic number.

52839031 is a deficient number, since it is larger than the sum of its proper divisors (7548441).

52839031 is an equidigital number, since it uses as much as digits as its factorization.

52839031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7548440.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 52839031 is about 7269.0460859730. The cubic root of 52839031 is about 375.2479095543.

The spelling of 52839031 in words is "fifty-two million, eight hundred thirty-nine thousand, thirty-one".

Divisors: 1 7 7548433 52839031