Base | Representation |
---|---|
bin | 11011111100001101… |
… | …001100101110110111 |
3 | 2212102211101220210020 |
4 | 123330031030232313 |
5 | 442420241402411 |
6 | 21440552100223 |
7 | 2111312221443 |
oct | 337415145667 |
9 | 85384356706 |
10 | 30001122231 |
11 | 117a59401a3 |
12 | 5993394673 |
13 | 2aa1698b42 |
14 | 164865b823 |
15 | ba8c9b606 |
hex | 6fc34cbb7 |
30001122231 has 16 divisors (see below), whose sum is σ = 40938247680. Its totient is φ = 19532520000.
The previous prime is 30001122169. The next prime is 30001122251. The reversal of 30001122231 is 13222110003.
It is not a de Polignac number, because 30001122231 - 215 = 30001089463 is a prime.
It is a super-2 number, since 2×300011222312 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30001122231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30001122251) 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, 1029106 + ... + 1057856.
It is an arithmetic number, because the mean of its divisors is an integer number (2558640480).
Almost surely, 230001122231 is an apocalyptic number.
30001122231 is a deficient number, since it is larger than the sum of its proper divisors (10937125449).
30001122231 is a wasteful number, since it uses less digits than its factorization.
30001122231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36886.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 30001122231 its reverse (13222110003), we get a palindrome (43223232234).
The spelling of 30001122231 in words is "thirty billion, one million, one hundred twenty-two thousand, two hundred thirty-one".
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