Base | Representation |
---|---|
bin | 101111011010… |
… | …110001101101 |
3 | 212101112100212 |
4 | 233122301231 |
5 | 11140233240 |
6 | 1122232205 |
7 | 210441236 |
oct | 57326155 |
9 | 25345325 |
10 | 12430445 |
11 | 70201a5 |
12 | 41b5665 |
13 | 2762bc1 |
14 | 191808d |
15 | 1158165 |
hex | bdac6d |
12430445 has 4 divisors (see below), whose sum is σ = 14916540. Its totient is φ = 9944352.
The previous prime is 12430433. The next prime is 12430447. The reversal of 12430445 is 54403421.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 8631844 + 3798601 = 2938^2 + 1949^2 .
It is a cyclic number.
It is not a de Polignac number, because 12430445 - 216 = 12364909 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12430445.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12430447) 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, 1243040 + ... + 1243049.
It is an arithmetic number, because the mean of its divisors is an integer number (3729135).
Almost surely, 212430445 is an apocalyptic number.
It is an amenable number.
12430445 is a deficient number, since it is larger than the sum of its proper divisors (2486095).
12430445 is an equidigital number, since it uses as much as digits as its factorization.
12430445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2486094.
The product of its (nonzero) digits is 1920, while the sum is 23.
The square root of 12430445 is about 3525.6836216541. The cubic root of 12430445 is about 231.6481798359.
Adding to 12430445 its reverse (54403421), we get a palindrome (66833866).
The spelling of 12430445 in words is "twelve million, four hundred thirty thousand, four hundred forty-five".
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