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50123121 = 319879353
BaseRepresentation
bin1011111100110…
…1000101110001
310111022111222220
42333031011301
5100312414441
64550151253
71146016356
oct277150561
9114274886
1050123121
1126325274
1214952529
13a4cc469
14692a62d
154601466
hex2fcd171

50123121 has 8 divisors (see below), whose sum is σ = 70348320. Its totient is φ = 31656672.

The previous prime is 50123113. The next prime is 50123131. The reversal of 50123121 is 12132105.

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

It is not a de Polignac number, because 50123121 - 23 = 50123113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50123121.

It is not an unprimeable number, because it can be changed into a prime (50123111) 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, 439620 + ... + 439733.

It is an arithmetic number, because the mean of its divisors is an integer number (8793540).

Almost surely, 250123121 is an apocalyptic number.

It is an amenable number.

50123121 is a deficient number, since it is larger than the sum of its proper divisors (20225199).

50123121 is a wasteful number, since it uses less digits than its factorization.

50123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879375.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 50123121 is about 7079.7684284163. The cubic root of 50123121 is about 368.7052897626.

Adding to 50123121 its reverse (12132105), we get a palindrome (62255226).

The spelling of 50123121 in words is "fifty million, one hundred twenty-three thousand, one hundred twenty-one".

Divisors: 1 3 19 57 879353 2638059 16707707 50123121