Base | Representation |
---|---|
bin | 10110101110100000… |
… | …00011011010010001 |
3 | 1011111022210102122020 |
4 | 23113100003122101 |
5 | 144442004304210 |
6 | 5334415002053 |
7 | 611233602555 |
oct | 132720033221 |
9 | 34438712566 |
10 | 12201244305 |
11 | 51a1314488 |
12 | 2446209329 |
13 | 11c5a662b3 |
14 | 83a645865 |
15 | 4b6273770 |
hex | 2d7403691 |
12201244305 has 16 divisors (see below), whose sum is σ = 19523676480. Its totient is φ = 6506768448.
The previous prime is 12201244303. The next prime is 12201244313. The reversal of 12201244305 is 50344210221.
It is not a de Polignac number, because 12201244305 - 21 = 12201244303 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12201244303) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191634 + ... + 247236.
It is an arithmetic number, because the mean of its divisors is an integer number (1220229780).
Almost surely, 212201244305 is an apocalyptic number.
12201244305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12201244305 is a deficient number, since it is larger than the sum of its proper divisors (7322432175).
12201244305 is a wasteful number, since it uses less digits than its factorization.
12201244305 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 70240.
The product of its (nonzero) digits is 1920, while the sum is 24.
Adding to 12201244305 its reverse (50344210221), we get a palindrome (62545454526).
The spelling of 12201244305 in words is "twelve billion, two hundred one million, two hundred forty-four thousand, three hundred five".
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