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50112013 = 771100829
BaseRepresentation
bin1011111100101…
…0011000001101
310111021221202111
42333022120031
5100312041023
64550024021
71145642110
oct277123015
9114257674
1050112013
1126317996
1214948011
13a4c73a3
146926577
1545ed00d
hex2fca60d

50112013 has 8 divisors (see below), whose sum is σ = 58078080. Its totient is φ = 42347760.

The previous prime is 50111993. The next prime is 50112017. The reversal of 50112013 is 31021105.

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

It is not a de Polignac number, because 50112013 - 225 = 16557581 is a prime.

It is a super-2 number, since 2×501120132 = 5022427693824338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50111984 and 50112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50112017) 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, 49918 + ... + 50911.

It is an arithmetic number, because the mean of its divisors is an integer number (7259760).

Almost surely, 250112013 is an apocalyptic number.

It is an amenable number.

50112013 is a deficient number, since it is larger than the sum of its proper divisors (7966067).

50112013 is a wasteful number, since it uses less digits than its factorization.

50112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100907.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 50112013 is about 7078.9838960122. The cubic root of 50112013 is about 368.6780509630.

Adding to 50112013 its reverse (31021105), we get a palindrome (81133118).

The spelling of 50112013 in words is "fifty million, one hundred twelve thousand, thirteen".

Divisors: 1 7 71 497 100829 705803 7158859 50112013