Base | Representation |
---|---|
bin | 1101101111010010101001… |
… | …01100111010111110101001 |
3 | 10221222021000121222200200110 |
4 | 12313221110230322332221 |
5 | 12424444112040201441 |
6 | 144131145220124533 |
7 | 6235522000331265 |
oct | 667512454727651 |
9 | 127867017880613 |
10 | 30212221022121 |
11 | 9698a27155036 |
12 | 347b3b7836749 |
13 | 13b200062a958 |
14 | 7663ca5810a5 |
15 | 375d510cbb16 |
hex | 1b7a54b3afa9 |
30212221022121 has 8 divisors (see below), whose sum is σ = 40321362664800. Its totient is φ = 20122280030432.
The previous prime is 30212221022063. The next prime is 30212221022143. The reversal of 30212221022121 is 12122012221203.
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 30212221022121 - 213 = 30212221013929 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30212221022171) 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, 4800159075 + ... + 4800165368.
It is an arithmetic number, because the mean of its divisors is an integer number (5040170333100).
Almost surely, 230212221022121 is an apocalyptic number.
It is an amenable number.
30212221022121 is a deficient number, since it is larger than the sum of its proper divisors (10109141642679).
30212221022121 is a wasteful number, since it uses less digits than its factorization.
30212221022121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9600325495.
The product of its (nonzero) digits is 384, while the sum is 21.
Adding to 30212221022121 its reverse (12122012221203), we get a palindrome (42334233243324).
The spelling of 30212221022121 in words is "thirty trillion, two hundred twelve billion, two hundred twenty-one million, twenty-two thousand, one hundred twenty-one".
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