Base | Representation |
---|---|
bin | 11100010101001110… |
… | …111111110111010101 |
3 | 2220112002112011000111 |
4 | 130111032333313111 |
5 | 444300240233323 |
6 | 21550352043021 |
7 | 2124601303456 |
oct | 342516776725 |
9 | 86462464014 |
10 | 30421024213 |
11 | 119a0969828 |
12 | 5a8bb33471 |
13 | 2b3a688058 |
14 | 168832312d |
15 | bd0a91c0d |
hex | 7153bfdd5 |
30421024213 has 2 divisors, whose sum is σ = 30421024214. Its totient is φ = 30421024212.
The previous prime is 30421024201. The next prime is 30421024219. The reversal of 30421024213 is 31242012403.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 28934690404 + 1486333809 = 170102^2 + 38553^2 .
It is a cyclic number.
It is not a de Polignac number, because 30421024213 - 25 = 30421024181 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30421024219) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210512106 + 15210512107.
It is an arithmetic number, because the mean of its divisors is an integer number (15210512107).
Almost surely, 230421024213 is an apocalyptic number.
It is an amenable number.
30421024213 is a deficient number, since it is larger than the sum of its proper divisors (1).
30421024213 is an equidigital number, since it uses as much as digits as its factorization.
30421024213 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1152, while the sum is 22.
Adding to 30421024213 its reverse (31242012403), we get a palindrome (61663036616).
The spelling of 30421024213 in words is "thirty billion, four hundred twenty-one million, twenty-four thousand, two hundred thirteen".
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