Base | Representation |
---|---|
bin | 11011111101010101… |
… | …101000011111110001 |
3 | 2212111011010121112211 |
4 | 123331111220133301 |
5 | 442440122012241 |
6 | 21442511052121 |
7 | 2111632504345 |
oct | 337525503761 |
9 | 85434117484 |
10 | 30020110321 |
11 | 1180562a233 |
12 | 5999811041 |
13 | 2aa55b67b6 |
14 | 164ada1625 |
15 | baa79c781 |
hex | 6fd5687f1 |
30020110321 has 8 divisors (see below), whose sum is σ = 30853400040. Its totient is φ = 29187975168.
The previous prime is 30020110279. The next prime is 30020110403. The reversal of 30020110321 is 12301102003.
It can be written as a sum of positive squares in 4 ways, for example, as 6713508096 + 23306602225 = 81936^2 + 152665^2 .
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 30020110321 - 233 = 21430175729 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30020110121) 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, 235786 + ... + 340051.
It is an arithmetic number, because the mean of its divisors is an integer number (3856675005).
Almost surely, 230020110321 is an apocalyptic number.
It is an amenable number.
30020110321 is a deficient number, since it is larger than the sum of its proper divisors (833289719).
30020110321 is a wasteful number, since it uses less digits than its factorization.
30020110321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 577283.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 30020110321 its reverse (12301102003), we get a palindrome (42321212324).
The spelling of 30020110321 in words is "thirty billion, twenty million, one hundred ten thousand, three hundred twenty-one".
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