Base | Representation |
---|---|
bin | 11100001010101000… |
… | …011000101110000010 |
3 | 2220001200210012100220 |
4 | 130022220120232002 |
5 | 443414220131432 |
6 | 21520555123510 |
7 | 2120311236243 |
oct | 341250305602 |
9 | 86050705326 |
10 | 30243130242 |
11 | 1190a505416 |
12 | 5a40443596 |
13 | 2b0c870950 |
14 | 166c856cca |
15 | bc015272c |
hex | 70aa18b82 |
30243130242 has 32 divisors (see below), whose sum is σ = 65200507008. Its totient is φ = 9296798976.
The previous prime is 30243130241. The next prime is 30243130277. The reversal of 30243130242 is 24203134203.
It is not an unprimeable number, because it can be changed into a prime (30243130241) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99463 + ... + 265290.
It is an arithmetic number, because the mean of its divisors is an integer number (2037515844).
Almost surely, 230243130242 is an apocalyptic number.
30243130242 is an abundant number, since it is smaller than the sum of its proper divisors (34957376766).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30243130242 is a wasteful number, since it uses less digits than its factorization.
30243130242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 365834.
The product of its (nonzero) digits is 3456, while the sum is 24.
Adding to 30243130242 its reverse (24203134203), we get a palindrome (54446264445).
The spelling of 30243130242 in words is "thirty billion, two hundred forty-three million, one hundred thirty thousand, two hundred forty-two".
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