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50382018 = 2322799001
BaseRepresentation
bin1100000000110…
…0010011000010
310111210200010200
43000030103002
5100344211033
64555510030
71151145231
oct300142302
9114720120
1050382018
1126491835
1214a58316
13a59025b
146996b18
154653013
hex300c4c2

50382018 has 12 divisors (see below), whose sum is σ = 109161078. Its totient is φ = 16794000.

The previous prime is 50382011. The next prime is 50382083. The reversal of 50382018 is 81028305.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 44315649 + 6066369 = 6657^2 + 2463^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50381982 and 50382000.

It is not an unprimeable number, because it can be changed into a prime (50382011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1399483 + ... + 1399518.

Almost surely, 250382018 is an apocalyptic number.

50382018 is an abundant number, since it is smaller than the sum of its proper divisors (58779060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50382018 is a wasteful number, since it uses less digits than its factorization.

50382018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799009 (or 2799006 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 50382018 is about 7098.0291630846. The cubic root of 50382018 is about 369.3390146774.

It can be divided in two parts, 5038 and 2018, that added together give a square (7056 = 842).

The spelling of 50382018 in words is "fifty million, three hundred eighty-two thousand, eighteen".

Divisors: 1 2 3 6 9 18 2799001 5598002 8397003 16794006 25191009 50382018