Search a number
-
+
50168209 = 731311251
BaseRepresentation
bin1011111101100…
…0000110010001
310111101210211211
42333120012101
5100320340314
64551140121
71146265000
oct277300621
9114353754
1050168209
1126356133
1214974641
13a516b40
14693cc37
15460e9c4
hex2fd8191

50168209 has 16 divisors (see below), whose sum is σ = 63011200. Its totient is φ = 39690000.

The previous prime is 50168201. The next prime is 50168233. The reversal of 50168209 is 90286105.

50168209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50168209 - 23 = 50168201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50168201) 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 15 ways as a sum of consecutive naturals, for example, 1167 + ... + 10084.

It is an arithmetic number, because the mean of its divisors is an integer number (3938200).

Almost surely, 250168209 is an apocalyptic number.

It is an amenable number.

50168209 is a deficient number, since it is larger than the sum of its proper divisors (12842991).

50168209 is a wasteful number, since it uses less digits than its factorization.

50168209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11285 (or 11271 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 50168209 is about 7082.9519975784. The cubic root of 50168209 is about 368.8158122888.

It can be divided in two parts, 5016 and 8209, that added together give a square (13225 = 1152).

The spelling of 50168209 in words is "fifty million, one hundred sixty-eight thousand, two hundred nine".

Divisors: 1 7 13 49 91 343 637 4459 11251 78757 146263 551299 1023841 3859093 7166887 50168209