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50385387 = 3132356171
BaseRepresentation
bin1100000000110…
…1000111101011
310111210211202110
43000031013223
5100344313022
64555533403
71151161113
oct300150753
9114724673
1050385387
1126494318
1214a5a263
13a591950
146998043
15465400c
hex300d1eb

50385387 has 16 divisors (see below), whose sum is σ = 75495168. Its totient is φ = 29657760.

The previous prime is 50385353. The next prime is 50385443. The reversal of 50385387 is 78358305.

It is not a de Polignac number, because 50385387 - 27 = 50385259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (50385287) 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, 27189 + ... + 28982.

It is an arithmetic number, because the mean of its divisors is an integer number (4718448).

Almost surely, 250385387 is an apocalyptic number.

50385387 is a deficient number, since it is larger than the sum of its proper divisors (25109781).

50385387 is a wasteful number, since it uses less digits than its factorization.

50385387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56210.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 50385387 is about 7098.2664785143. The cubic root of 50385387 is about 369.3472469493.

The spelling of 50385387 in words is "fifty million, three hundred eighty-five thousand, three hundred eighty-seven".

Divisors: 1 3 13 23 39 69 299 897 56171 168513 730223 1291933 2190669 3875799 16795129 50385387