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50838149 = 73696413
BaseRepresentation
bin1100000111101…
…1101010000101
310112122211211102
43001323222011
5101003310044
65013345445
71155055115
oct301735205
9115584742
1050838149
11267734aa
1215038285
13a6bca5b
146a75045
1546e324e
hex307ba85

50838149 has 4 divisors (see below), whose sum is σ = 51534636. Its totient is φ = 50141664.

The previous prime is 50838127. The next prime is 50838191. The reversal of 50838149 is 94183805.

50838149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25908100 + 24930049 = 5090^2 + 4993^2 .

It is a cyclic number.

It is not a de Polignac number, because 50838149 - 28 = 50837893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50838049) 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 3 ways as a sum of consecutive naturals, for example, 348134 + ... + 348279.

It is an arithmetic number, because the mean of its divisors is an integer number (12883659).

Almost surely, 250838149 is an apocalyptic number.

It is an amenable number.

50838149 is a deficient number, since it is larger than the sum of its proper divisors (696487).

50838149 is an equidigital number, since it uses as much as digits as its factorization.

50838149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696486.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 50838149 is about 7130.0875871198. The cubic root of 50838149 is about 370.4502650811.

The spelling of 50838149 in words is "fifty million, eight hundred thirty-eight thousand, one hundred forty-nine".

Divisors: 1 73 696413 50838149