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50213213 = 446311251
BaseRepresentation
bin1011111110001…
…1000101011101
310111111002120122
42333203011131
5100323310323
64552124325
71146543131
oct277430535
9114432518
1050213213
1126386a26
12149966a5
13a53147b
1469513c1
15461cec8
hex2fe315d

50213213 has 4 divisors (see below), whose sum is σ = 50228928. Its totient is φ = 50197500.

The previous prime is 50213197. The next prime is 50213231. The reversal of 50213213 is 31231205.

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 a cyclic number.

It is not a de Polignac number, because 50213213 - 24 = 50213197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50213191 and 50213200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50213243) 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, 1163 + ... + 10088.

It is an arithmetic number, because the mean of its divisors is an integer number (12557232).

Almost surely, 250213213 is an apocalyptic number.

It is an amenable number.

50213213 is a deficient number, since it is larger than the sum of its proper divisors (15715).

50213213 is a wasteful number, since it uses less digits than its factorization.

50213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15714.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 50213213 is about 7086.1282093962. The cubic root of 50213213 is about 368.9260628931.

Adding to 50213213 its reverse (31231205), we get a palindrome (81444418).

The spelling of 50213213 in words is "fifty million, two hundred thirteen thousand, two hundred thirteen".

Divisors: 1 4463 11251 50213213