Base | Representation |
---|---|
bin | 10010101111010000… |
… | …100000101001011011 |
3 | 1220221012201120101101 |
4 | 102233100200221123 |
5 | 312201233210021 |
6 | 13124301532231 |
7 | 1311411651256 |
oct | 225720405133 |
9 | 56835646341 |
10 | 20120210011 |
11 | 8595374640 |
12 | 3a96274077 |
13 | 1b88576315 |
14 | d8c25809d |
15 | 7cb5b3a91 |
hex | 4af420a5b |
20120210011 has 16 divisors (see below), whose sum is σ = 22065039360. Its totient is φ = 18194800320.
The previous prime is 20120210009. The next prime is 20120210029. The reversal of 20120210011 is 11001202102.
It is a cyclic number.
It is not a de Polignac number, because 20120210011 - 21 = 20120210009 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 20120210011.
It is not an unprimeable number, because it can be changed into a prime (20120610011) 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, 4297770 + ... + 4302448.
It is an arithmetic number, because the mean of its divisors is an integer number (1379064960).
Almost surely, 220120210011 is an apocalyptic number.
20120210011 is a deficient number, since it is larger than the sum of its proper divisors (1944829349).
20120210011 is a wasteful number, since it uses less digits than its factorization.
20120210011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6666.
The product of its (nonzero) digits is 8, while the sum is 10.
Adding to 20120210011 its reverse (11001202102), we get a palindrome (31121412113).
The spelling of 20120210011 in words is "twenty billion, one hundred twenty million, two hundred ten thousand, eleven".
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