Base | Representation |
---|---|
bin | 111000111101100010… |
… | …1111100111011001001 |
3 | 102200201222122100021222 |
4 | 1301323011330323021 |
5 | 4001010001221441 |
6 | 132110041011425 |
7 | 11560210621334 |
oct | 1617305747311 |
9 | 380658570258 |
10 | 122324242121 |
11 | 47971933684 |
12 | 1b85a183b75 |
13 | b6c5899773 |
14 | 5cc5cc561b |
15 | 32ae064d4b |
hex | 1c7b17cec9 |
122324242121 has 4 divisors (see below), whose sum is σ = 123406757652. Its totient is φ = 121241726592.
The previous prime is 122324242063. The next prime is 122324242127. The reversal of 122324242121 is 121242423221.
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: 121242423221 = 83 ⋅1460752087.
It can be written as a sum of positive squares in 2 ways, for example, as 21502116496 + 100822125625 = 146636^2 + 317525^2 .
It is a cyclic number.
It is not a de Polignac number, because 122324242121 - 218 = 122323979977 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (122324242127) 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, 541257596 + ... + 541257821.
It is an arithmetic number, because the mean of its divisors is an integer number (30851689413).
Almost surely, 2122324242121 is an apocalyptic number.
It is an amenable number.
122324242121 is a deficient number, since it is larger than the sum of its proper divisors (1082515531).
122324242121 is a wasteful number, since it uses less digits than its factorization.
122324242121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1082515530.
The product of its digits is 3072, while the sum is 26.
Adding to 122324242121 its reverse (121242423221), we get a palindrome (243566665342).
The spelling of 122324242121 in words is "one hundred twenty-two billion, three hundred twenty-four million, two hundred forty-two thousand, one hundred twenty-one".
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