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52388018 = 243609163
BaseRepresentation
bin1100011111011…
…0000010110010
310122120120211222
43013312002302
5101402404033
65110505042
71204201514
oct307660262
9118516758
1052388018
1127631991
1215665182
13ab13337
146d59bb4
1548ec598
hex31f60b2

52388018 has 8 divisors (see below), whose sum is σ = 80409648. Its totient is φ = 25584804.

The previous prime is 52388003. The next prime is 52388071. The reversal of 52388018 is 81088325.

52388018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 304496 + ... + 304667.

It is an arithmetic number, because the mean of its divisors is an integer number (10051206).

Almost surely, 252388018 is an apocalyptic number.

52388018 is a deficient number, since it is larger than the sum of its proper divisors (28021630).

52388018 is a wasteful number, since it uses less digits than its factorization.

52388018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609208.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 52388018 is about 7237.9567558808. The cubic root of 52388018 is about 374.1772016242.

The spelling of 52388018 in words is "fifty-two million, three hundred eighty-eight thousand, eighteen".

Divisors: 1 2 43 86 609163 1218326 26194009 52388018