Base | Representation |
---|---|
bin | 10010101110101010… |
… | …110010110100111001 |
3 | 1220220112010020221211 |
4 | 102232222302310321 |
5 | 312141220314001 |
6 | 13123310003121 |
7 | 1311231632206 |
oct | 225652626471 |
9 | 56815106854 |
10 | 20110323001 |
11 | 858a83135a |
12 | 3a92aa64a1 |
13 | 1b864c4012 |
14 | d8ac02cad |
15 | 7ca7ae351 |
hex | 4aeab2d39 |
20110323001 has 4 divisors (see below), whose sum is σ = 20133254692. Its totient is φ = 20087391312.
The previous prime is 20110322993. The next prime is 20110323031. The reversal of 20110323001 is 10032301102.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10032301102 = 2 ⋅5016150551.
It can be written as a sum of positive squares in 2 ways, for example, as 11820038400 + 8290284601 = 108720^2 + 91051^2 .
It is a cyclic number.
It is not a de Polignac number, because 20110323001 - 23 = 20110322993 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20110323031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11464530 + ... + 11466283.
It is an arithmetic number, because the mean of its divisors is an integer number (5033313673).
Almost surely, 220110323001 is an apocalyptic number.
It is an amenable number.
20110323001 is a deficient number, since it is larger than the sum of its proper divisors (22931691).
20110323001 is an equidigital number, since it uses as much as digits as its factorization.
20110323001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22931690.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 20110323001 its reverse (10032301102), we get a palindrome (30142624103).
The spelling of 20110323001 in words is "twenty billion, one hundred ten million, three hundred twenty-three thousand, one".
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