Base | Representation |
---|---|
bin | 10110100100110100… |
… | …01000011011100111 |
3 | 1011021122220210201110 |
4 | 23102122020123213 |
5 | 144310210001411 |
6 | 5322353400103 |
7 | 606226205433 |
oct | 132232103347 |
9 | 34248823643 |
10 | 12120000231 |
11 | 515a473619 |
12 | 2422b69033 |
13 | 11b1c8b891 |
14 | 82d9379c3 |
15 | 4ae0762a6 |
hex | 2d26886e7 |
12120000231 has 32 divisors (see below), whose sum is σ = 17102880000. Its totient is φ = 7613319168.
The previous prime is 12120000209. The next prime is 12120000241. The reversal of 12120000231 is 13200002121.
12120000231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12120000231 - 25 = 12120000199 is a prime.
It is a super-2 number, since 2×121200002312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12120000241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11337165 + ... + 11338233.
It is an arithmetic number, because the mean of its divisors is an integer number (534465000).
Almost surely, 212120000231 is an apocalyptic number.
12120000231 is a deficient number, since it is larger than the sum of its proper divisors (4982879769).
12120000231 is a wasteful number, since it uses less digits than its factorization.
12120000231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1983.
The product of its (nonzero) digits is 24, while the sum is 12.
Adding to 12120000231 its reverse (13200002121), we get a palindrome (25320002352).
The spelling of 12120000231 in words is "twelve billion, one hundred twenty million, two hundred thirty-one", and thus it is an aban number.
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