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50189477 = 133860729
BaseRepresentation
bin1011111101110…
…1010010100101
310111102220000112
42333131102211
5100322030402
64551422405
71146414002
oct277352245
9114386015
1050189477
1126370108
1214984a05
13a523720
1469468a9
154615e52
hex2fdd4a5

50189477 has 4 divisors (see below), whose sum is σ = 54050220. Its totient is φ = 46328736.

The previous prime is 50189437. The next prime is 50189483. The reversal of 50189477 is 77498105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77498105 = 515499621.

It can be written as a sum of positive squares in 2 ways, for example, as 5044516 + 45144961 = 2246^2 + 6719^2 .

It is a cyclic number.

It is not a de Polignac number, because 50189477 - 28 = 50189221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50189407) 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, 1930352 + ... + 1930377.

It is an arithmetic number, because the mean of its divisors is an integer number (13512555).

Almost surely, 250189477 is an apocalyptic number.

It is an amenable number.

50189477 is a deficient number, since it is larger than the sum of its proper divisors (3860743).

50189477 is a wasteful number, since it uses less digits than its factorization.

50189477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860742.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 50189477 is about 7084.4531899082. The cubic root of 50189477 is about 368.8679227565.

The spelling of 50189477 in words is "fifty million, one hundred eighty-nine thousand, four hundred seventy-seven".

Divisors: 1 13 3860729 50189477