Base | Representation |
---|---|
bin | 10110100010011101… |
… | …01101110001000011 |
3 | 1011020021201101100111 |
4 | 23101032231301003 |
5 | 144240124331321 |
6 | 5320405532151 |
7 | 605566155046 |
oct | 132116556103 |
9 | 34207641314 |
10 | 12100230211 |
11 | 514a2a0063 |
12 | 2418414057 |
13 | 11aab59044 |
14 | 82b06cc5d |
15 | 4ac46d5e1 |
hex | 2d13adc43 |
12100230211 has 4 divisors (see below), whose sum is σ = 12100750272. Its totient is φ = 12099710152.
The previous prime is 12100230133. The next prime is 12100230221. The reversal of 12100230211 is 11203200121.
12100230211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11203200121 = 71 ⋅157791551.
It is a cyclic number.
It is not a de Polignac number, because 12100230211 - 213 = 12100222019 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12100230191 and 12100230200.
It is not an unprimeable number, because it can be changed into a prime (12100230221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223411 + ... + 272236.
It is an arithmetic number, because the mean of its divisors is an integer number (3025187568).
Almost surely, 212100230211 is an apocalyptic number.
12100230211 is a deficient number, since it is larger than the sum of its proper divisors (520061).
12100230211 is an equidigital number, since it uses as much as digits as its factorization.
12100230211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 520060.
The product of its (nonzero) digits is 24, while the sum is 13.
Adding to 12100230211 its reverse (11203200121), we get a palindrome (23303430332).
The spelling of 12100230211 in words is "twelve billion, one hundred million, two hundred thirty thousand, two hundred eleven".
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