Base | Representation |
---|---|
bin | 11100001000110010… |
… | …001000110100011000 |
3 | 2212222112110022221022 |
4 | 130020302020310120 |
5 | 443333301211440 |
6 | 21513530502012 |
7 | 2116453612562 |
oct | 341062106430 |
9 | 85875408838 |
10 | 30212132120 |
11 | 118a3a63035 |
12 | 5a31b94908 |
13 | 2b06309571 |
14 | 16686a8332 |
15 | bbc57ccb5 |
hex | 708c88d18 |
30212132120 has 32 divisors (see below), whose sum is σ = 68038693200. Its totient is φ = 12073938048.
The previous prime is 30212132081. The next prime is 30212132173. The reversal of 30212132120 is 2123121203.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296174 + ... + 384893.
Almost surely, 230212132120 is an apocalyptic number.
It is an amenable number.
30212132120 is an abundant number, since it is smaller than the sum of its proper divisors (37826561080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30212132120 is a wasteful number, since it uses less digits than its factorization.
30212132120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 682187 (or 682183 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 17.
Adding to 30212132120 its reverse (2123121203), we get a palindrome (32335253323).
The spelling of 30212132120 in words is "thirty billion, two hundred twelve million, one hundred thirty-two thousand, one hundred twenty".
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