Base | Representation |
---|---|
bin | 1101101111010010010000… |
… | …01100001101101010101001 |
3 | 10221222020111000000121220202 |
4 | 12313221020030031222221 |
5 | 12424443144321340241 |
6 | 144131112321201545 |
7 | 6235513541236511 |
oct | 667511014155251 |
9 | 127866430017822 |
10 | 30212011121321 |
11 | 969892971a4a7 |
12 | 347b3594902b5 |
13 | 13b1c98cb7cb3 |
14 | 7663aa742841 |
15 | 375d3c968d9b |
hex | 1b7a4830daa9 |
30212011121321 has 16 divisors (see below), whose sum is σ = 31628481955200. Its totient is φ = 28804166485248.
The previous prime is 30212011121297. The next prime is 30212011121333. The reversal of 30212011121321 is 12312111021203.
It is not a de Polignac number, because 30212011121321 - 234 = 30194831252137 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30212011121293 and 30212011121302.
It is not an unprimeable number, because it can be changed into a prime (30212011121221) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25693070 + ... + 26843208.
It is an arithmetic number, because the mean of its divisors is an integer number (1976780122200).
Almost surely, 230212011121321 is an apocalyptic number.
It is an amenable number.
30212011121321 is a deficient number, since it is larger than the sum of its proper divisors (1416470833879).
30212011121321 is a wasteful number, since it uses less digits than its factorization.
30212011121321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1153888.
The product of its (nonzero) digits is 144, while the sum is 20.
Adding to 30212011121321 its reverse (12312111021203), we get a palindrome (42524122142524).
The spelling of 30212011121321 in words is "thirty trillion, two hundred twelve billion, eleven million, one hundred twenty-one thousand, three hundred twenty-one".
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