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52105039 = 77443577
BaseRepresentation
bin1100011011000…
…0111101001111
310122001012200021
43012300331033
5101314330124
65100443011
71201612510
oct306607517
9118035607
1052105039
1127459318
1215549467
13aa445ac
146cc4a07
1548937e4
hex31b0f4f

52105039 has 4 divisors (see below), whose sum is σ = 59548624. Its totient is φ = 44661456.

The previous prime is 52105021. The next prime is 52105043. The reversal of 52105039 is 93050125.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52105039 - 25 = 52105007 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 (52105019) 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, 3721782 + ... + 3721795.

It is an arithmetic number, because the mean of its divisors is an integer number (14887156).

Almost surely, 252105039 is an apocalyptic number.

52105039 is a deficient number, since it is larger than the sum of its proper divisors (7443585).

52105039 is an equidigital number, since it uses as much as digits as its factorization.

52105039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7443584.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 52105039 is about 7218.3820209241. The cubic root of 52105039 is about 373.5022666761.

The spelling of 52105039 in words is "fifty-two million, one hundred five thousand, thirty-nine".

Divisors: 1 7 7443577 52105039