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50116631 = 281178351
BaseRepresentation
bin1011111100101…
…1100000010111
310111022012002112
42333023200113
5100312213011
64550101235
71145661425
oct277134027
9114265075
1050116631
1126320404
121494a81b
13a4c9516
146928115
1545ee58b
hex2fcb817

50116631 has 4 divisors (see below), whose sum is σ = 50295264. Its totient is φ = 49938000.

The previous prime is 50116601. The next prime is 50116639. The reversal of 50116631 is 13661105.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13661105 = 52732221.

It is a cyclic number.

It is not a de Polignac number, because 50116631 - 26 = 50116567 is a prime.

It is a super-2 number, since 2×501166312 = 5023353405580322, 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 = 50116597 and 50116606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50116639) 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, 88895 + ... + 89456.

It is an arithmetic number, because the mean of its divisors is an integer number (12573816).

Almost surely, 250116631 is an apocalyptic number.

50116631 is a deficient number, since it is larger than the sum of its proper divisors (178633).

50116631 is a wasteful number, since it uses less digits than its factorization.

50116631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178632.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 50116631 is about 7079.3100652535. The cubic root of 50116631 is about 368.6893756124.

Adding to 50116631 its reverse (13661105), we get a palindrome (63777736).

The spelling of 50116631 in words is "fifty million, one hundred sixteen thousand, six hundred thirty-one".

Divisors: 1 281 178351 50116631