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50122121 = 729246907
BaseRepresentation
bin1011111100110…
…0110110001001
310111022110121212
42333030312021
5100312401441
64550142505
71146013430
oct277146611
9114273555
1050122121
1126324545
1214951a35
13a4cbb7a
14692a117
154600eeb
hex2fccd89

50122121 has 8 divisors (see below), whose sum is σ = 59257920. Its totient is φ = 41480208.

The previous prime is 50122109. The next prime is 50122141. The reversal of 50122121 is 12122105.

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

It is a de Polignac number, because none of the positive numbers 2k-50122121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50122096 and 50122105.

It is not an unprimeable number, because it can be changed into a prime (50122141) 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, 123251 + ... + 123656.

It is an arithmetic number, because the mean of its divisors is an integer number (7407240).

Almost surely, 250122121 is an apocalyptic number.

It is an amenable number.

50122121 is a deficient number, since it is larger than the sum of its proper divisors (9135799).

50122121 is a wasteful number, since it uses less digits than its factorization.

50122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246943.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 50122121 is about 7079.6978042852. The cubic root of 50122121 is about 368.7028377488.

Adding to 50122121 its reverse (12122105), we get a palindrome (62244226).

It can be divided in two parts, 501 and 22121, that added together give a palindrome (22622).

The spelling of 50122121 in words is "fifty million, one hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 7 29 203 246907 1728349 7160303 50122121