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50042013 = 372382953
BaseRepresentation
bin1011111011100…
…1010010011101
310111011101201220
42332321102131
5100302321023
64544323553
71145231040
oct276712235
9114141656
1050042013
112627a33a
12149135b9
13a4a1578
146908c57
1545d73e3
hex2fb949d

50042013 has 8 divisors (see below), whose sum is σ = 76254528. Its totient is φ = 28595424.

The previous prime is 50041973. The next prime is 50042039. The reversal of 50042013 is 31024005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50042013 - 221 = 47944861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50041983 and 50042001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50042813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1191456 + ... + 1191497.

It is an arithmetic number, because the mean of its divisors is an integer number (9531816).

Almost surely, 250042013 is an apocalyptic number.

It is an amenable number.

50042013 is a deficient number, since it is larger than the sum of its proper divisors (26212515).

50042013 is a wasteful number, since it uses less digits than its factorization.

50042013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382963.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 50042013 is about 7074.0379557930. The cubic root of 50042013 is about 368.5063057871.

Adding to 50042013 its reverse (31024005), we get a palindrome (81066018).

The spelling of 50042013 in words is "fifty million, forty-two thousand, thirteen".

Divisors: 1 3 7 21 2382953 7148859 16680671 50042013