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50412121 = 297323813
BaseRepresentation
bin1100000001001…
…1101001011001
310111212012102121
43000103221121
5100401141441
65000301241
71151332054
oct300235131
9114765377
1050412121
1126502411
1214a71821
13a5a0b76
1469a3a9b
15465bdd1
hex3013a59

50412121 has 8 divisors (see below), whose sum is σ = 52867080. Its totient is φ = 48004992.

The previous prime is 50412119. The next prime is 50412143. The reversal of 50412121 is 12121405.

It can be written as a sum of positive squares in 4 ways, for example, as 9388096 + 41024025 = 3064^2 + 6405^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 50412121 - 21 = 50412119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50412095 and 50412104.

It is not an unprimeable number, because it can be changed into a prime (50412421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9790 + ... + 14023.

It is an arithmetic number, because the mean of its divisors is an integer number (6608385).

Almost surely, 250412121 is an apocalyptic number.

It is an amenable number.

50412121 is a deficient number, since it is larger than the sum of its proper divisors (2454959).

50412121 is a wasteful number, since it uses less digits than its factorization.

50412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23915.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 50412121 is about 7100.1493646261. The cubic root of 50412121 is about 369.4125594273.

Adding to 50412121 its reverse (12121405), we get a palindrome (62533526).

The spelling of 50412121 in words is "fifty million, four hundred twelve thousand, one hundred twenty-one".

Divisors: 1 29 73 2117 23813 690577 1738349 50412121