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50215413 = 316738471
BaseRepresentation
bin1011111110001…
…1100111110101
310111111012121010
42333203213311
5100323343123
64552142433
71146552423
oct277434765
9114435533
1050215413
1126388646
1214997a19
13a532481
146952113
15461d993
hex2fe39f5

50215413 has 4 divisors (see below), whose sum is σ = 66953888. Its totient is φ = 33476940.

The previous prime is 50215393. The next prime is 50215427. The reversal of 50215413 is 31451205.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50215413 - 213 = 50207221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50215413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50215493) 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, 8369233 + ... + 8369238.

It is an arithmetic number, because the mean of its divisors is an integer number (16738472).

Almost surely, 250215413 is an apocalyptic number.

It is an amenable number.

50215413 is a deficient number, since it is larger than the sum of its proper divisors (16738475).

50215413 is a wasteful number, since it uses less digits than its factorization.

50215413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16738474.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 50215413 is about 7086.2834405632. The cubic root of 50215413 is about 368.9314507545.

Adding to 50215413 its reverse (31451205), we get a palindrome (81666618).

The spelling of 50215413 in words is "fifty million, two hundred fifteen thousand, four hundred thirteen".

Divisors: 1 3 16738471 50215413