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52388211 = 317462737
BaseRepresentation
bin1100011111011…
…0000101110011
310122120121010010
43013312011303
5101402410321
65110510003
71204202211
oct307660563
9118517103
1052388211
1127632047
1215665303
13ab13455
146d59cb1
1548ec676
hex31f6173

52388211 has 4 divisors (see below), whose sum is σ = 69850952. Its totient is φ = 34925472.

The previous prime is 52388207. The next prime is 52388267. The reversal of 52388211 is 11288325.

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

It is not a de Polignac number, because 52388211 - 22 = 52388207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52388311) 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, 8731366 + ... + 8731371.

It is an arithmetic number, because the mean of its divisors is an integer number (17462738).

Almost surely, 252388211 is an apocalyptic number.

52388211 is a deficient number, since it is larger than the sum of its proper divisors (17462741).

52388211 is a wasteful number, since it uses less digits than its factorization.

52388211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17462740.

The product of its digits is 3840, while the sum is 30.

The square root of 52388211 is about 7237.9700883604. The cubic root of 52388211 is about 374.1776611193.

The spelling of 52388211 in words is "fifty-two million, three hundred eighty-eight thousand, two hundred eleven".

Divisors: 1 3 17462737 52388211