Base | Representation |
---|---|
bin | 11100001001110110… |
… | …010110010001100111 |
3 | 2220000210002202221021 |
4 | 130021312112101213 |
5 | 443402340404111 |
6 | 21515410032011 |
7 | 2120061604531 |
oct | 341166262147 |
9 | 86023082837 |
10 | 30230013031 |
11 | 11903066249 |
12 | 5a37b78607 |
13 | 2b09c2a29a |
14 | 166ac00851 |
15 | bbde10d71 |
hex | 709d96467 |
30230013031 has 6 divisors (see below), whose sum is σ = 30985315496. Its totient is φ = 29492694000.
The previous prime is 30230013029. The next prime is 30230013067. The reversal of 30230013031 is 13031003203.
It is not a de Polignac number, because 30230013031 - 21 = 30230013029 is a prime.
It is a super-2 number, since 2×302300130312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30230012996 and 30230013014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30230016031) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8989995 + ... + 8993356.
Almost surely, 230230013031 is an apocalyptic number.
30230013031 is a deficient number, since it is larger than the sum of its proper divisors (755302465).
30230013031 is an equidigital number, since it uses as much as digits as its factorization.
30230013031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17983433 (or 17983392 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 16.
Adding to 30230013031 its reverse (13031003203), we get a palindrome (43261016234).
The spelling of 30230013031 in words is "thirty billion, two hundred thirty million, thirteen thousand, thirty-one".
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