Base | Representation |
---|---|
bin | 10110110011010100… |
… | …01111000011101001 |
3 | 1011121010211212112202 |
4 | 23121222033003221 |
5 | 200032331142220 |
6 | 5342421145545 |
7 | 612234261134 |
oct | 133152170351 |
9 | 34533755482 |
10 | 12241662185 |
11 | 521210aa95 |
12 | 245785b2b5 |
13 | 12012480bc |
14 | 841b6721b |
15 | 4b9aa9275 |
hex | 2d9a8f0e9 |
12241662185 has 4 divisors (see below), whose sum is σ = 14689994628. Its totient is φ = 9793329744.
The previous prime is 12241662179. The next prime is 12241662197. The reversal of 12241662185 is 58126614221.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58126614221 = 13 ⋅4471278017.
It can be written as a sum of positive squares in 2 ways, for example, as 9215232016 + 3026430169 = 95996^2 + 55013^2 .
It is a cyclic number.
It is not a de Polignac number, because 12241662185 - 210 = 12241661161 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1224166214 + ... + 1224166223.
It is an arithmetic number, because the mean of its divisors is an integer number (3672498657).
Almost surely, 212241662185 is an apocalyptic number.
It is an amenable number.
12241662185 is a deficient number, since it is larger than the sum of its proper divisors (2448332443).
12241662185 is an equidigital number, since it uses as much as digits as its factorization.
12241662185 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2448332442.
The product of its digits is 46080, while the sum is 38.
The spelling of 12241662185 in words is "twelve billion, two hundred forty-one million, six hundred sixty-two thousand, one hundred eighty-five".
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