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50306057 = 411226977
BaseRepresentation
bin1011111111100…
…1110000001001
310111122210221022
42333321300021
5100334243212
64554122225
71150410614
oct277716011
9114583838
1050306057
112643a75a
1214a20375
13a5647c9
14697717b
15463a772
hex2ff9c09

50306057 has 4 divisors (see below), whose sum is σ = 51533076. Its totient is φ = 49079040.

The previous prime is 50306023. The next prime is 50306089. The reversal of 50306057 is 75060305.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75060305 = 515012061.

It can be written as a sum of positive squares in 2 ways, for example, as 13388281 + 36917776 = 3659^2 + 6076^2 .

It is a cyclic number.

It is not a de Polignac number, because 50306057 - 26 = 50305993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50306257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613448 + ... + 613529.

It is an arithmetic number, because the mean of its divisors is an integer number (12883269).

Almost surely, 250306057 is an apocalyptic number.

It is an amenable number.

50306057 is a deficient number, since it is larger than the sum of its proper divisors (1227019).

50306057 is a wasteful number, since it uses less digits than its factorization.

50306057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227018.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 50306057 is about 7092.6762931914. The cubic root of 50306057 is about 369.1533037596.

The spelling of 50306057 in words is "fifty million, three hundred six thousand, fifty-seven".

Divisors: 1 41 1226977 50306057