Base | Representation |
---|---|
bin | 11100001000101110… |
… | …101100101000000011 |
3 | 2212222110202111202021 |
4 | 130020232230220003 |
5 | 443333033331321 |
6 | 21513455302311 |
7 | 2116443135241 |
oct | 341056545003 |
9 | 85873674667 |
10 | 30211230211 |
11 | 118a34a7458 |
12 | 5a3181a997 |
13 | 2b06081ba6 |
14 | 1668511791 |
15 | bbc450941 |
hex | 708baca03 |
30211230211 has 4 divisors (see below), whose sum is σ = 31252996800. Its totient is φ = 29169463624.
The previous prime is 30211230187. The next prime is 30211230223. The reversal of 30211230211 is 11203211203.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30211230211 - 211 = 30211228163 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30211230311) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520883251 + ... + 520883308.
It is an arithmetic number, because the mean of its divisors is an integer number (7813249200).
Almost surely, 230211230211 is an apocalyptic number.
30211230211 is a deficient number, since it is larger than the sum of its proper divisors (1041766589).
30211230211 is a wasteful number, since it uses less digits than its factorization.
30211230211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1041766588.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 30211230211 its reverse (11203211203), we get a palindrome (41414441414).
The spelling of 30211230211 in words is "thirty billion, two hundred eleven million, two hundred thirty thousand, two hundred eleven".
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