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50129213 = 234779587
BaseRepresentation
bin1011111100111…
…0100100111101
310111022211100112
42333032210331
5100313113323
64550235405
71146043211
oct277164475
9114284315
1050129213
1126329902
1214955b65
13a502174
14692c941
154603178
hex2fce93d

50129213 has 16 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 46256496.

The previous prime is 50129207. The next prime is 50129227. The reversal of 50129213 is 31292105.

It is not a de Polignac number, because 50129213 - 216 = 50063677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 (50129203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85106 + ... + 85692.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 250129213 is an apocalyptic number.

It is an amenable number.

50129213 is a deficient number, since it is larger than the sum of its proper divisors (4060867).

50129213 is a wasteful number, since it uses less digits than its factorization.

50129213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 50129213 is about 7080.1986554051. The cubic root of 50129213 is about 368.7202267257.

The spelling of 50129213 in words is "fifty million, one hundred twenty-nine thousand, two hundred thirteen".

Divisors: 1 23 47 79 587 1081 1817 3713 13501 27589 46373 85399 634547 1066579 2179531 50129213