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50020506 = 2322778917
BaseRepresentation
bin1011111011010…
…0000010011010
310111010022020100
42332310002122
5100301124011
64544040230
71145111244
oct276640232
9114108210
1050020506
1126265168
1214903076
13a494843
146901094
1545d0d56
hex2fb409a

50020506 has 12 divisors (see below), whose sum is σ = 108377802. Its totient is φ = 16673496.

The previous prime is 50020501. The next prime is 50020507. The reversal of 50020506 is 60502005.

50020506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43441281 + 6579225 = 6591^2 + 2565^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2778917 = 50020506 / (5 + 0 + 0 + 2 + 0 + 5 + 0 + 6).

It is not an unprimeable number, because it can be changed into a prime (50020501) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1389441 + ... + 1389476.

Almost surely, 250020506 is an apocalyptic number.

50020506 is an abundant number, since it is smaller than the sum of its proper divisors (58357296).

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

50020506 is a wasteful number, since it uses less digits than its factorization.

50020506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778925 (or 2778922 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 50020506 is about 7072.5176563937. The cubic root of 50020506 is about 368.4535061472.

The spelling of 50020506 in words is "fifty million, twenty thousand, five hundred six".

Divisors: 1 2 3 6 9 18 2778917 5557834 8336751 16673502 25010253 50020506