Base | Representation |
---|---|
bin | 10110111101111111… |
… | …10101110110101001 |
3 | 1011211101100111002000 |
4 | 23132333311312221 |
5 | 200223242242301 |
6 | 5355340401213 |
7 | 614402400660 |
oct | 133677656651 |
9 | 34741314060 |
10 | 12331212201 |
11 | 5258714270 |
12 | 2481846209 |
13 | 1216970289 |
14 | 84d9d7dd7 |
15 | 4c2897786 |
hex | 2deff5da9 |
12331212201 has 32 divisors (see below), whose sum is σ = 22776268800. Its totient is φ = 6405823440.
The previous prime is 12331212197. The next prime is 12331212247. The reversal of 12331212201 is 10221213321.
It is not a de Polignac number, because 12331212201 - 22 = 12331212197 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12331212301) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2963581 + ... + 2967738.
It is an arithmetic number, because the mean of its divisors is an integer number (711758400).
Almost surely, 212331212201 is an apocalyptic number.
12331212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
12331212201 is a deficient number, since it is larger than the sum of its proper divisors (10445056599).
12331212201 is a wasteful number, since it uses less digits than its factorization.
12331212201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5931346 (or 5931340 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 12331212201 its reverse (10221213321), we get a palindrome (22552425522).
The spelling of 12331212201 in words is "twelve billion, three hundred thirty-one million, two hundred twelve thousand, two hundred one".
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