Base | Representation |
---|---|
bin | 1101101111010010011101… |
… | …10000001111111100000111 |
3 | 10221222020202200012210011010 |
4 | 12313221032300033330013 |
5 | 12424443411013343421 |
6 | 144131131253213303 |
7 | 6235516346166351 |
oct | 667511660177407 |
9 | 127866680183133 |
10 | 30212121231111 |
11 | 9698985896626 |
12 | 347b38a331233 |
13 | 13b1cb5a5b311 |
14 | 7663bb2060d1 |
15 | 375d47469076 |
hex | 1b7a4ec0ff07 |
30212121231111 has 8 divisors (see below), whose sum is σ = 40850192087424. Its totient is φ = 19857732264440.
The previous prime is 30212121231101. The next prime is 30212121231169. The reversal of 30212121231111 is 11113212121203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30212121231111 - 217 = 30212121100039 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30212121231101) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70920472161 + ... + 70920472586.
It is an arithmetic number, because the mean of its divisors is an integer number (5106274010928).
Almost surely, 230212121231111 is an apocalyptic number.
30212121231111 is a deficient number, since it is larger than the sum of its proper divisors (10638070856313).
30212121231111 is a wasteful number, since it uses less digits than its factorization.
30212121231111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 141840944821.
The product of its (nonzero) digits is 144, while the sum is 21.
Adding to 30212121231111 its reverse (11113212121203), we get a palindrome (41325333352314).
The spelling of 30212121231111 in words is "thirty trillion, two hundred twelve billion, one hundred twenty-one million, two hundred thirty-one thousand, one hundred eleven".
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