Base | Representation |
---|---|
bin | 11100001110010000… |
… | …110000000000010111 |
3 | 2220012221101220000010 |
4 | 130032100300000113 |
5 | 444030313334111 |
6 | 21531012451303 |
7 | 2121651054453 |
oct | 341620600027 |
9 | 86187356003 |
10 | 30304043031 |
11 | 1194092a069 |
12 | 5a58919b33 |
13 | 2b1c37a212 |
14 | 1676991663 |
15 | bc5685aa6 |
hex | 70e430017 |
30304043031 has 16 divisors (see below), whose sum is σ = 41478925824. Its totient is φ = 19670383104.
The previous prime is 30304042991. The next prime is 30304043057. The reversal of 30304043031 is 13034040303.
It is not a de Polignac number, because 30304043031 - 211 = 30304040983 is a prime.
It is a super-2 number, since 2×303040430312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30304042989 and 30304043007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30304043071) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529581 + ... + 584006.
It is an arithmetic number, because the mean of its divisors is an integer number (2592432864).
Almost surely, 230304043031 is an apocalyptic number.
30304043031 is a deficient number, since it is larger than the sum of its proper divisors (11174882793).
30304043031 is a wasteful number, since it uses less digits than its factorization.
30304043031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1113830.
The product of its (nonzero) digits is 1296, while the sum is 21.
Adding to 30304043031 its reverse (13034040303), we get a palindrome (43338083334).
The spelling of 30304043031 in words is "thirty billion, three hundred four million, forty-three thousand, thirty-one".
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