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50215169 is a prime number
BaseRepresentation
bin1011111110001…
…1100100000001
310111111012021002
42333203210001
5100323341134
64552141345
71146551624
oct277434401
9114435232
1050215169
1126388444
1214997855
13a532324
146951dbb
15461d87e
hex2fe3901

50215169 has 2 divisors, whose sum is σ = 50215170. Its totient is φ = 50215168.

The previous prime is 50215117. The next prime is 50215177. The reversal of 50215169 is 96151205.

50215169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34374769 + 15840400 = 5863^2 + 3980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50215169 is a prime.

It is a super-2 number, since 2×502151692 = 5043126395397122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50215189) 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 as a sum of consecutive naturals, namely, 25107584 + 25107585.

It is an arithmetic number, because the mean of its divisors is an integer number (25107585).

Almost surely, 250215169 is an apocalyptic number.

It is an amenable number.

50215169 is a deficient number, since it is larger than the sum of its proper divisors (1).

50215169 is an equidigital number, since it uses as much as digits as its factorization.

50215169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 50215169 is about 7086.2662241832. The cubic root of 50215169 is about 368.9308531994.

The spelling of 50215169 in words is "fifty million, two hundred fifteen thousand, one hundred sixty-nine".