Base | Representation |
---|---|
bin | 11011111100110111… |
… | …100000100001100101 |
3 | 2212110121021101221101 |
4 | 123330313200201211 |
5 | 442431111311344 |
6 | 21442025520101 |
7 | 2111505414166 |
oct | 337467404145 |
9 | 85417241841 |
10 | 30012213349 |
11 | 11801126108 |
12 | 5997043031 |
13 | 2aa3a80231 |
14 | 1649d0776d |
15 | ba9c3c9d4 |
hex | 6fcde0865 |
30012213349 has 2 divisors, whose sum is σ = 30012213350. Its totient is φ = 30012213348.
The previous prime is 30012213299. The next prime is 30012213373. The reversal of 30012213349 is 94331221003.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 23898068100 + 6114145249 = 154590^2 + 78193^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30012213349 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30012213449) 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, 15006106674 + 15006106675.
It is an arithmetic number, because the mean of its divisors is an integer number (15006106675).
Almost surely, 230012213349 is an apocalyptic number.
It is an amenable number.
30012213349 is a deficient number, since it is larger than the sum of its proper divisors (1).
30012213349 is an equidigital number, since it uses as much as digits as its factorization.
30012213349 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3888, while the sum is 28.
The spelling of 30012213349 in words is "thirty billion, twelve million, two hundred thirteen thousand, three hundred forty-nine".
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