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50213001 = 316737667
BaseRepresentation
bin1011111110001…
…1000010001001
310111111002021210
42333203002021
5100323304001
64552123333
71146542406
oct277430211
9114432253
1050213001
1126386853
1214996549
13a531347
1469512ad
15461cdd6
hex2fe3089

50213001 has 4 divisors (see below), whose sum is σ = 66950672. Its totient is φ = 33475332.

The previous prime is 50212997. The next prime is 50213021. The reversal of 50213001 is 10031205.

50213001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 50213001 - 22 = 50212997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50213021) 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 in 3 ways as a sum of consecutive naturals, for example, 8368831 + ... + 8368836.

It is an arithmetic number, because the mean of its divisors is an integer number (16737668).

Almost surely, 250213001 is an apocalyptic number.

It is an amenable number.

50213001 is a deficient number, since it is larger than the sum of its proper divisors (16737671).

50213001 is a wasteful number, since it uses less digits than its factorization.

50213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16737670.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 50213001 is about 7086.1132505768. The cubic root of 50213001 is about 368.9255436909.

Adding to 50213001 its reverse (10031205), we get a palindrome (60244206).

The spelling of 50213001 in words is "fifty million, two hundred thirteen thousand, one".

Divisors: 1 3 16737667 50213001