Base | Representation |
---|---|
bin | 101111000111… |
… | …011000110001 |
3 | 212020111102101 |
4 | 233013120301 |
5 | 11130213100 |
6 | 1120420401 |
7 | 206660551 |
oct | 57073061 |
9 | 25214371 |
10 | 12351025 |
11 | 6a76565 |
12 | 4177701 |
13 | 27359cb |
14 | 18d7161 |
15 | 113e86a |
hex | bc7631 |
12351025 has 6 divisors (see below), whose sum is σ = 15315302. Its totient is φ = 9880800.
The previous prime is 12351011. The next prime is 12351029. The reversal of 12351025 is 52015321.
It can be written as a sum of positive squares in 3 ways, for example, as 1540081 + 10810944 = 1241^2 + 3288^2 .
It is a de Polignac number, because none of the positive numbers 2k-12351025 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12350993 and 12351011.
It is not an unprimeable number, because it can be changed into a prime (12351029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246996 + ... + 247045.
Almost surely, 212351025 is an apocalyptic number.
It is an amenable number.
12351025 is a deficient number, since it is larger than the sum of its proper divisors (2964277).
12351025 is an equidigital number, since it uses as much as digits as its factorization.
12351025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 494051 (or 494046 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 19.
The square root of 12351025 is about 3514.4025096736. The cubic root of 12351025 is about 231.1537802767.
Adding to 12351025 its reverse (52015321), we get a palindrome (64366346).
The spelling of 12351025 in words is "twelve million, three hundred fifty-one thousand, twenty-five".
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