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50185434 = 2313643403
BaseRepresentation
bin1011111101110…
…0010011011010
310111102200110210
42333130103122
5100321413214
64551351550
71146366135
oct277342332
9114380423
1050185434
1126368072
12149825b6
13a521930
14694521c
154614b59
hex2fdc4da

50185434 has 16 divisors (see below), whose sum is σ = 108091872. Its totient is φ = 15441648.

The previous prime is 50185433. The next prime is 50185439. The reversal of 50185434 is 43458105.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50185433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321624 + ... + 321779.

It is an arithmetic number, because the mean of its divisors is an integer number (6755742).

Almost surely, 250185434 is an apocalyptic number.

50185434 is an abundant number, since it is smaller than the sum of its proper divisors (57906438).

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

50185434 is a wasteful number, since it uses less digits than its factorization.

50185434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643421.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 50185434 is about 7084.1678410382. The cubic root of 50185434 is about 368.8580178047.

The spelling of 50185434 in words is "fifty million, one hundred eighty-five thousand, four hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 78 643403 1286806 1930209 3860418 8364239 16728478 25092717 50185434