Base | Representation |
---|---|
bin | 11100010010110000… |
… | …011000011111110001 |
3 | 2220102012021122222100 |
4 | 130102300120133301 |
5 | 444204114203314 |
6 | 21542304531013 |
7 | 2123555005122 |
oct | 342260303761 |
9 | 86365248870 |
10 | 30379444209 |
11 | 1197a44a094 |
12 | 5a7a020a69 |
13 | 2b31b8a2ba |
14 | 16829bc049 |
15 | bcc0cbc09 |
hex | 712c187f1 |
30379444209 has 9 divisors (see below), whose sum is σ = 43882174713. Its totient is φ = 20252614212.
The previous prime is 30379444187. The next prime is 30379444211. The reversal of 30379444209 is 90244497303.
The square root of 30379444209 is 174297.
It is a perfect power (a square), and thus also a powerful number.
30379444209 is a `hidden beast` number, since 30 + 379 + 4 + 44 + 209 = 666.
It is a tau number, because it is divible by the number of its divisors (9).
It is not a de Polignac number, because 30379444209 - 221 = 30377347057 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30379444219) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 493842 + ... + 551940.
Almost surely, 230379444209 is an apocalyptic number.
30379444209 is the 174297-th square number.
30379444209 is the 87149-th centered octagonal number.
It is an amenable number.
30379444209 is a deficient number, since it is larger than the sum of its proper divisors (13502730504).
30379444209 is an frugal number, since it uses more digits than its factorization.
30379444209 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 116204 (or 58102 counting only the distinct ones).
The product of its (nonzero) digits is 653184, while the sum is 45.
The spelling of 30379444209 in words is "thirty billion, three hundred seventy-nine million, four hundred forty-four thousand, two hundred nine".
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