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50318885 = 521614657
BaseRepresentation
bin1011111111110…
…0111000100101
310111200110112102
42333330320211
5100340201020
64554301445
71150463201
oct277747045
9114613472
1050318885
1126449361
1214a27885
13a56a5b6
14697bb01
15463e475
hex2ffce25

50318885 has 8 divisors (see below), whose sum is σ = 60423576. Its totient is φ = 40227840.

The previous prime is 50318881. The next prime is 50318887. The reversal of 50318885 is 58881305.

It can be written as a sum of positive squares in 4 ways, for example, as 1444804 + 48874081 = 1202^2 + 6991^2 .

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

It is not a de Polignac number, because 50318885 - 22 = 50318881 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 (50318881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8477 + ... + 13133.

It is an arithmetic number, because the mean of its divisors is an integer number (7552947).

Almost surely, 250318885 is an apocalyptic number.

It is an amenable number.

50318885 is a deficient number, since it is larger than the sum of its proper divisors (10104691).

50318885 is a wasteful number, since it uses less digits than its factorization.

50318885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 50318885 is about 7093.5805486369. The cubic root of 50318885 is about 369.1846790148.

The spelling of 50318885 in words is "fifty million, three hundred eighteen thousand, eight hundred eighty-five".

Divisors: 1 5 2161 4657 10805 23285 10063777 50318885