Base | Representation |
---|---|
bin | 11100000100100111… |
… | …000110100010000111 |
3 | 2212210122201212111201 |
4 | 130010213012202013 |
5 | 443212341132221 |
6 | 21502550243331 |
7 | 2114643610636 |
oct | 340447064207 |
9 | 85718655451 |
10 | 30142130311 |
11 | 118684a06a7 |
12 | 5a12656547 |
13 | 2ac4969c87 |
14 | 165d28551d |
15 | bb6351891 |
hex | 7049c6887 |
30142130311 has 2 divisors, whose sum is σ = 30142130312. Its totient is φ = 30142130310.
The previous prime is 30142130303. The next prime is 30142130383. The reversal of 30142130311 is 11303124103.
It is a weak prime.
It is an emirp because it is prime and its reverse (11303124103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30142130311 - 23 = 30142130303 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30142130111) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071065155 + 15071065156.
It is an arithmetic number, because the mean of its divisors is an integer number (15071065156).
Almost surely, 230142130311 is an apocalyptic number.
30142130311 is a deficient number, since it is larger than the sum of its proper divisors (1).
30142130311 is an equidigital number, since it uses as much as digits as its factorization.
30142130311 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 30142130311 its reverse (11303124103), we get a palindrome (41445254414).
The spelling of 30142130311 in words is "thirty billion, one hundred forty-two million, one hundred thirty thousand, three hundred eleven".
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