Base | Representation |
---|---|
bin | 10110100010110100… |
… | …01010110011010101 |
3 | 1011020111100221000201 |
4 | 23101122022303111 |
5 | 144241411421400 |
6 | 5320554140501 |
7 | 605633531533 |
oct | 132132126325 |
9 | 34214327021 |
10 | 12103232725 |
11 | 5150a60981 |
12 | 2419421731 |
13 | 11ab66a88c |
14 | 82b611153 |
15 | 4ac86306a |
hex | 2d168acd5 |
12103232725 has 6 divisors (see below), whose sum is σ = 15008008610. Its totient is φ = 9682586160.
The previous prime is 12103232719. The next prime is 12103232767. The reversal of 12103232725 is 52723230121.
12103232725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 3 ways, for example, as 1912689 + 12101320036 = 1383^2 + 110006^2 .
It is not a de Polignac number, because 12103232725 - 27 = 12103232597 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a junction number, because it is equal to n+sod(n) for n = 12103232693 and 12103232702.
It is a congruent number.
It is an unprimeable number.
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 5 ways as a sum of consecutive naturals, for example, 242064630 + ... + 242064679.
Almost surely, 212103232725 is an apocalyptic number.
It is an amenable number.
12103232725 is a deficient number, since it is larger than the sum of its proper divisors (2904775885).
12103232725 is an equidigital number, since it uses as much as digits as its factorization.
12103232725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 484129319 (or 484129314 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 28.
Adding to 12103232725 its reverse (52723230121), we get a palindrome (64826462846).
The spelling of 12103232725 in words is "twelve billion, one hundred three million, two hundred thirty-two thousand, seven hundred twenty-five".
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