Base | Representation |
---|---|
bin | 11100001001111010… |
… | …111000110101111001 |
3 | 2220000212100020112100 |
4 | 130021322320311321 |
5 | 443403142000233 |
6 | 21515451334013 |
7 | 2120104662432 |
oct | 341172706571 |
9 | 86025306470 |
10 | 30231203193 |
11 | 119037a9454 |
12 | 5a38451309 |
13 | 2b0a255c19 |
14 | 166b030489 |
15 | bbe098813 |
hex | 709eb8d79 |
30231203193 has 24 divisors (see below), whose sum is σ = 45236445696. Its totient is φ = 19434542400.
The previous prime is 30231203159. The next prime is 30231203201. The reversal of 30231203193 is 39130213203.
30231203193 is a `hidden beast` number, since 30 + 2 + 312 + 0 + 319 + 3 = 666.
It is not a de Polignac number, because 30231203193 - 214 = 30231186809 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30231201193) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114405 + ... + 271202.
It is an arithmetic number, because the mean of its divisors is an integer number (1884851904).
Almost surely, 230231203193 is an apocalyptic number.
It is an amenable number.
30231203193 is a deficient number, since it is larger than the sum of its proper divisors (15005242503).
30231203193 is a wasteful number, since it uses less digits than its factorization.
30231203193 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 385925 (or 385922 counting only the distinct ones).
The product of its (nonzero) digits is 2916, while the sum is 27.
Adding to 30231203193 its reverse (39130213203), we get a palindrome (69361416396).
The spelling of 30231203193 in words is "thirty billion, two hundred thirty-one million, two hundred three thousand, one hundred ninety-three".
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