Base | Representation |
---|---|
bin | 11100010101011011… |
… | …010000111111111001 |
3 | 2220112022120112102012 |
4 | 130111123100333321 |
5 | 444302101140441 |
6 | 21550545015305 |
7 | 2124640526342 |
oct | 342533207771 |
9 | 86468515365 |
10 | 30424240121 |
11 | 119a2765a00 |
12 | 5a91024535 |
13 | 2b3b242a62 |
14 | 168891d0c9 |
15 | bd0ec99eb |
hex | 7156d0ff9 |
30424240121 has 24 divisors (see below), whose sum is σ = 33867806280. Its totient is φ = 27307653120.
The previous prime is 30424240109. The next prime is 30424240129. The reversal of 30424240121 is 12104242403.
It can be written as a sum of positive squares in 4 ways, for example, as 6108204025 + 24316036096 = 78155^2 + 155936^2 .
It is not a de Polignac number, because 30424240121 - 26 = 30424240057 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30424240129) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3860441 + ... + 3868313.
It is an arithmetic number, because the mean of its divisors is an integer number (1411158595).
Almost surely, 230424240121 is an apocalyptic number.
It is an amenable number.
30424240121 is a deficient number, since it is larger than the sum of its proper divisors (3443566159).
30424240121 is a wasteful number, since it uses less digits than its factorization.
30424240121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8297 (or 8286 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 23.
Adding to 30424240121 its reverse (12104242403), we get a palindrome (42528482524).
The spelling of 30424240121 in words is "thirty billion, four hundred twenty-four million, two hundred forty thousand, one hundred twenty-one".
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