Base | Representation |
---|---|
bin | 11100001001111010… |
… | …100000001010101011 |
3 | 2220000212011002220000 |
4 | 130021322200022223 |
5 | 443403130231443 |
6 | 21515445234043 |
7 | 2120104061655 |
oct | 341172401253 |
9 | 86025132800 |
10 | 30231102123 |
11 | 1190373a522 |
12 | 5a38402923 |
13 | 2b0a21bc11 |
14 | 166b0056d5 |
15 | bbe0788d3 |
hex | 709ea02ab |
30231102123 has 40 divisors (see below), whose sum is σ = 45552144000. Its totient is φ = 19979498880.
The previous prime is 30231102061. The next prime is 30231102127. The reversal of 30231102123 is 32120113203.
It is not a de Polignac number, because 30231102123 - 214 = 30231085739 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30231102096 and 30231102105.
It is not an unprimeable number, because it can be changed into a prime (30231102127) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10995753 + ... + 10998501.
It is an arithmetic number, because the mean of its divisors is an integer number (1138803600).
Almost surely, 230231102123 is an apocalyptic number.
30231102123 is a deficient number, since it is larger than the sum of its proper divisors (15321041877).
30231102123 is a wasteful number, since it uses less digits than its factorization.
30231102123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3889 (or 3880 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 30231102123 its reverse (32120113203), we get a palindrome (62351215326).
The spelling of 30231102123 in words is "thirty billion, two hundred thirty-one million, one hundred two thousand, one hundred twenty-three".
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