Base | Representation |
---|---|
bin | 10110100010101100… |
… | …10001000111010001 |
3 | 1011020102102222010001 |
4 | 23101112101013101 |
5 | 144241131210001 |
6 | 5320520210001 |
7 | 605622042040 |
oct | 132126210721 |
9 | 34212388101 |
10 | 12102210001 |
11 | 5150422552 |
12 | 2419009901 |
13 | 11ab3a020b |
14 | 82b426557 |
15 | 4ac710001 |
hex | 2d15911d1 |
12102210001 has 32 divisors (see below), whose sum is σ = 14425456640. Its totient is φ = 9935006400.
The previous prime is 12102209957. The next prime is 12102210011. The reversal of 12102210001 is 10001220121.
It is a cyclic number.
It is not a de Polignac number, because 12102210001 - 229 = 11565339089 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12102210001.
It is not an unprimeable number, because it can be changed into a prime (12102210011) 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, 18308611 + ... + 18309271.
It is an arithmetic number, because the mean of its divisors is an integer number (450795520).
Almost surely, 212102210001 is an apocalyptic number.
It is an amenable number.
12102210001 is a deficient number, since it is larger than the sum of its proper divisors (2323246639).
12102210001 is a wasteful number, since it uses less digits than its factorization.
12102210001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1445.
The product of its (nonzero) digits is 8, while the sum is 10.
Adding to 12102210001 its reverse (10001220121), we get a palindrome (22103430122).
The spelling of 12102210001 in words is "twelve billion, one hundred two million, two hundred ten thousand, one".
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