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50201311 = 471068113
BaseRepresentation
bin1011111110000…
…0001011011111
310111110111020211
42333200023133
5100322420221
64551553251
71146463336
oct277401337
9114414224
1050201311
1126378a96
121498b827
13a528c24
14694ad1d
1546196e1
hex2fe02df

50201311 has 4 divisors (see below), whose sum is σ = 51269472. Its totient is φ = 49133152.

The previous prime is 50201279. The next prime is 50201317. The reversal of 50201311 is 11310205.

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

It is a cyclic number.

It is not a de Polignac number, because 50201311 - 25 = 50201279 is a prime.

It is a super-2 number, since 2×502013112 = 5040343252237442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50201291 and 50201300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50201317) 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, 534010 + ... + 534103.

It is an arithmetic number, because the mean of its divisors is an integer number (12817368).

Almost surely, 250201311 is an apocalyptic number.

50201311 is a deficient number, since it is larger than the sum of its proper divisors (1068161).

50201311 is a wasteful number, since it uses less digits than its factorization.

50201311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068160.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 50201311 is about 7085.2883498133. The cubic root of 50201311 is about 368.8969118343.

Adding to 50201311 its reverse (11310205), we get a palindrome (61511516).

The spelling of 50201311 in words is "fifty million, two hundred one thousand, three hundred eleven".

Divisors: 1 47 1068113 50201311