Base | Representation |
---|---|
bin | 100100001000001… |
… | …0010101100101001 |
3 | 10010111000200112202 |
4 | 1020100102230221 |
5 | 4440312333231 |
6 | 320142145545 |
7 | 42016534352 |
oct | 11020225451 |
9 | 3114020482 |
10 | 1212230441 |
11 | 5722aa744 |
12 | 299b822b5 |
13 | 1641b7326 |
14 | b6dd4d29 |
15 | 716545cb |
hex | 48412b29 |
1212230441 has 12 divisors (see below), whose sum is σ = 1295983308. Its totient is φ = 1133613312.
The previous prime is 1212230401. The next prime is 1212230447. The reversal of 1212230441 is 1440322121.
It can be written as a sum of positive squares in 6 ways, for example, as 912025 + 1211318416 = 955^2 + 34804^2 .
It is not a de Polignac number, because 1212230441 - 226 = 1145121577 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1212230447) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32015 + ... + 58731.
It is an arithmetic number, because the mean of its divisors is an integer number (107998609).
Almost surely, 21212230441 is an apocalyptic number.
It is an amenable number.
1212230441 is a deficient number, since it is larger than the sum of its proper divisors (83752867).
1212230441 is a wasteful number, since it uses less digits than its factorization.
1212230441 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26908 (or 26891 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 20.
The square root of 1212230441 is about 34817.0998361437. The cubic root of 1212230441 is about 1066.2565904907.
Adding to 1212230441 its reverse (1440322121), we get a palindrome (2652552562).
The spelling of 1212230441 in words is "one billion, two hundred twelve million, two hundred thirty thousand, four hundred forty-one".
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