Base | Representation |
---|---|
bin | 11011111110101001… |
… | …100110100010100001 |
3 | 2212112200112221110001 |
4 | 123332221212202201 |
5 | 443011240404101 |
6 | 21445014540001 |
7 | 2112320553454 |
oct | 337651464241 |
9 | 85480487401 |
10 | 30042122401 |
11 | 11816aa4235 |
12 | 59a5067601 |
13 | 2aaa0229b5 |
14 | 164dc9149b |
15 | bac699901 |
hex | 6fea668a1 |
30042122401 has 2 divisors, whose sum is σ = 30042122402. Its totient is φ = 30042122400.
The previous prime is 30042122399. The next prime is 30042122417. The reversal of 30042122401 is 10422124003.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 26953430625 + 3088691776 = 164175^2 + 55576^2 .
It is an emirp because it is prime and its reverse (10422124003) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30042122401 - 21 = 30042122399 is a prime.
Together with 30042122399, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (30042128401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15021061200 + 15021061201.
It is an arithmetic number, because the mean of its divisors is an integer number (15021061201).
Almost surely, 230042122401 is an apocalyptic number.
It is an amenable number.
30042122401 is a deficient number, since it is larger than the sum of its proper divisors (1).
30042122401 is an equidigital number, since it uses as much as digits as its factorization.
30042122401 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 384, while the sum is 19.
Adding to 30042122401 its reverse (10422124003), we get a palindrome (40464246404).
The spelling of 30042122401 in words is "thirty billion, forty-two million, one hundred twenty-two thousand, four hundred one".
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