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50131328 = 271347641
BaseRepresentation
bin1011111100111…
…1000110000000
310111022221020212
42333033012000
5100313200303
64550253252
71146052322
oct277170600
9114287225
1050131328
1126330455
1214957228
13a503110
14692d612
154603ad8
hex2fcf180

50131328 has 64 divisors (see below), whose sum is σ = 110013120. Its totient is φ = 22609920.

The previous prime is 50131327. The next prime is 50131349. The reversal of 50131328 is 82313105.

50131328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50131321) 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 7 ways as a sum of consecutive naturals, for example, 77888 + ... + 78528.

It is an arithmetic number, because the mean of its divisors is an integer number (1718955).

Almost surely, 250131328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50131328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55006560).

50131328 is an abundant number, since it is smaller than the sum of its proper divisors (59881792).

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

50131328 is a wasteful number, since it uses less digits than its factorization.

50131328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 50131328 is about 7080.3480140456. The cubic root of 50131328 is about 368.7254122071.

The spelling of 50131328 in words is "fifty million, one hundred thirty-one thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 13 16 26 32 47 52 64 94 104 128 188 208 376 416 611 641 752 832 1222 1282 1504 1664 2444 2564 3008 4888 5128 6016 8333 9776 10256 16666 19552 20512 30127 33332 39104 41024 60254 66664 78208 82048 120508 133328 241016 266656 391651 482032 533312 783302 964064 1066624 1566604 1928128 3133208 3856256 6266416 12532832 25065664 50131328