Base | Representation |
---|---|
bin | 11100010101111100… |
… | …110101100000100100 |
3 | 2220112221010122011012 |
4 | 130111330311200210 |
5 | 444311324243140 |
6 | 21551501401352 |
7 | 2125105401236 |
oct | 342574654044 |
9 | 86487118135 |
10 | 30433040420 |
11 | 119a7726782 |
12 | 5a93b69258 |
13 | 2b40004533 |
14 | 1689b70256 |
15 | bd1b67265 |
hex | 715f35824 |
30433040420 has 12 divisors (see below), whose sum is σ = 63909384924. Its totient is φ = 12173216160.
The previous prime is 30433040327. The next prime is 30433040471. The reversal of 30433040420 is 2404033403.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 17770489636 + 12662550784 = 133306^2 + 112528^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760825991 + ... + 760826030.
It is an arithmetic number, because the mean of its divisors is an integer number (5325782077).
Almost surely, 230433040420 is an apocalyptic number.
It is an amenable number.
30433040420 is an abundant number, since it is smaller than the sum of its proper divisors (33476344504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30433040420 is a wasteful number, since it uses less digits than its factorization.
30433040420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1521652030 (or 1521652028 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 23.
Adding to 30433040420 its reverse (2404033403), we get a palindrome (32837073823).
The spelling of 30433040420 in words is "thirty billion, four hundred thirty-three million, forty thousand, four hundred twenty".
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