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50910140 = 22513918313
BaseRepresentation
bin1100001000110…
…1001110111100
310112210111120202
43002031032330
5101013111030
65015103032
71155505031
oct302151674
9115714522
1050910140
11268125a6
1215071a78
13a716758
146a93388
154709745
hex308d3bc

50910140 has 24 divisors (see below), whose sum is σ = 107686320. Its totient is φ = 20216448.

The previous prime is 50910131. The next prime is 50910163. The reversal of 50910140 is 4101905.

50910140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6377 + ... + 11936.

It is an arithmetic number, because the mean of its divisors is an integer number (4486930).

Almost surely, 250910140 is an apocalyptic number.

It is an amenable number.

50910140 is an abundant number, since it is smaller than the sum of its proper divisors (56776180).

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

50910140 is a wasteful number, since it uses less digits than its factorization.

50910140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18461 (or 18459 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 50910140 is about 7135.1341963554. The cubic root of 50910140 is about 370.6250452866.

The spelling of 50910140 in words is "fifty million, nine hundred ten thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 18313 36626 73252 91565 183130 366260 2545507 5091014 10182028 12727535 25455070 50910140