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50128413 = 3179277337
BaseRepresentation
bin1011111100111…
…0011000011101
310111022210020220
42333032120131
5100313102123
64550231553
71146040656
oct277163035
9114283226
1050128413
1126329245
12149555b9
13a5019aa
14692c52d
154602ce3
hex2fce61d

50128413 has 16 divisors (see below), whose sum is σ = 67654080. Its totient is φ = 33014016.

The previous prime is 50128399. The next prime is 50128417. The reversal of 50128413 is 31482105.

It is not a de Polignac number, because 50128413 - 25 = 50128381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50128417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148581 + ... + 148917.

It is an arithmetic number, because the mean of its divisors is an integer number (4228380).

Almost surely, 250128413 is an apocalyptic number.

It is an amenable number.

50128413 is a deficient number, since it is larger than the sum of its proper divisors (17525667).

50128413 is a wasteful number, since it uses less digits than its factorization.

50128413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 50128413 is about 7080.1421595897. The cubic root of 50128413 is about 368.7182652763.

The spelling of 50128413 in words is "fifty million, one hundred twenty-eight thousand, four hundred thirteen".

Divisors: 1 3 179 277 337 537 831 1011 49583 60323 93349 148749 180969 280047 16709471 50128413