Base | Representation |
---|---|
bin | 101110100111… |
… | …111110110001 |
3 | 211222221221221 |
4 | 232213332301 |
5 | 11112104020 |
6 | 1113545041 |
7 | 205613530 |
oct | 56477661 |
9 | 24887857 |
10 | 12222385 |
11 | 699894a |
12 | 4115181 |
13 | 26bc2a6 |
14 | 18a2317 |
15 | 11166aa |
hex | ba7fb1 |
12222385 has 8 divisors (see below), whose sum is σ = 16762176. Its totient is φ = 8381040.
The previous prime is 12222367. The next prime is 12222389. The reversal of 12222385 is 58322221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12222385 - 27 = 12222257 is a prime.
It is a Duffinian number.
It is a plaindrome in base 15.
It is a zygodrome in base 15.
It is not an unprimeable number, because it can be changed into a prime (12222389) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174571 + ... + 174640.
It is an arithmetic number, because the mean of its divisors is an integer number (2095272).
Almost surely, 212222385 is an apocalyptic number.
It is an amenable number.
12222385 is a deficient number, since it is larger than the sum of its proper divisors (4539791).
12222385 is an equidigital number, since it uses as much as digits as its factorization.
12222385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 349223.
The product of its digits is 1920, while the sum is 25.
The square root of 12222385 is about 3496.0527742012. The cubic root of 12222385 is about 230.3484635989.
The spelling of 12222385 in words is "twelve million, two hundred twenty-two thousand, three hundred eighty-five".
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