Base | Representation |
---|---|
bin | 11100001110011010… |
… | …101011000110010011 |
3 | 2220020010022001101001 |
4 | 130032122223012103 |
5 | 444032000104441 |
6 | 21531144322431 |
7 | 2122012140523 |
oct | 341632530623 |
9 | 86203261331 |
10 | 30306644371 |
11 | 11942346533 |
12 | 5a59773417 |
13 | 2b1ca7b283 |
14 | 167706b683 |
15 | bc59eb731 |
hex | 70e6ab193 |
30306644371 has 4 divisors (see below), whose sum is σ = 30313358352. Its totient is φ = 30299930392.
The previous prime is 30306644341. The next prime is 30306644377. The reversal of 30306644371 is 17344660303.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30306644371 - 29 = 30306643859 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30306644371.
It is not an unprimeable number, because it can be changed into a prime (30306644377) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350215 + ... + 3359248.
It is an arithmetic number, because the mean of its divisors is an integer number (7578339588).
Almost surely, 230306644371 is an apocalyptic number.
30306644371 is a deficient number, since it is larger than the sum of its proper divisors (6713981).
30306644371 is an equidigital number, since it uses as much as digits as its factorization.
30306644371 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6713980.
The product of its (nonzero) digits is 108864, while the sum is 37.
The spelling of 30306644371 in words is "thirty billion, three hundred six million, six hundred forty-four thousand, three hundred seventy-one".
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