Base | Representation |
---|---|
bin | 1101101010000001100000… |
… | …10001100000101010000101 |
3 | 10221022221211102221120202212 |
4 | 12311000300101200222011 |
5 | 12414012420113331323 |
6 | 143512052542313205 |
7 | 6216453441435050 |
oct | 665006021405205 |
9 | 127287742846685 |
10 | 30031221230213 |
11 | 9629195521455 |
12 | 3450303288805 |
13 | 139ac1681cb78 |
14 | 75b739a8da97 |
15 | 3712aac33b78 |
hex | 1b5030460a85 |
30031221230213 has 16 divisors (see below), whose sum is σ = 35394466060800. Its totient is φ = 24944671248000.
The previous prime is 30031221230209. The next prime is 30031221230317. The reversal of 30031221230213 is 31203212213003.
It is not a de Polignac number, because 30031221230213 - 22 = 30031221230209 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30031220230213) 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, 351092813 + ... + 351178338.
It is an arithmetic number, because the mean of its divisors is an integer number (2212154128800).
Almost surely, 230031221230213 is an apocalyptic number.
It is an amenable number.
30031221230213 is a deficient number, since it is larger than the sum of its proper divisors (5363244830587).
30031221230213 is a wasteful number, since it uses less digits than its factorization.
30031221230213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 702271348.
The product of its (nonzero) digits is 1296, while the sum is 23.
Adding to 30031221230213 its reverse (31203212213003), we get a palindrome (61234433443216).
The spelling of 30031221230213 in words is "thirty trillion, thirty-one billion, two hundred twenty-one million, two hundred thirty thousand, two hundred thirteen".
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