Base | Representation |
---|---|
bin | 11100001101011000… |
… | …111110011001110101 |
3 | 2220011220220001122021 |
4 | 130031120332121311 |
5 | 444013043000231 |
6 | 21525331233141 |
7 | 2121412560412 |
oct | 341530763165 |
9 | 86156801567 |
10 | 30289421941 |
11 | 11933653019 |
12 | 5a53a487b1 |
13 | 2b1932b19c |
14 | 1674a67109 |
15 | bc4248811 |
hex | 70d63e675 |
30289421941 has 4 divisors (see below), whose sum is σ = 30289924384. Its totient is φ = 30288919500.
The previous prime is 30289421909. The next prime is 30289421963. The reversal of 30289421941 is 14912498203.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14912498203 = 3361 ⋅4436923.
It is a cyclic number.
It is not a de Polignac number, because 30289421941 - 25 = 30289421909 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30289421971) 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, 146145 + ... + 286246.
It is an arithmetic number, because the mean of its divisors is an integer number (7572481096).
Almost surely, 230289421941 is an apocalyptic number.
It is an amenable number.
30289421941 is a deficient number, since it is larger than the sum of its proper divisors (502443).
30289421941 is an equidigital number, since it uses as much as digits as its factorization.
30289421941 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 502442.
The product of its (nonzero) digits is 124416, while the sum is 43.
The spelling of 30289421941 in words is "thirty billion, two hundred eighty-nine million, four hundred twenty-one thousand, nine hundred forty-one".
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