Base | Representation |
---|---|
bin | 11100010011010110… |
… | …110000001110001000 |
3 | 2220102220012200211211 |
4 | 130103112300032020 |
5 | 444214203042411 |
6 | 21543304302504 |
7 | 2124036340456 |
oct | 342326601610 |
9 | 86386180754 |
10 | 30389502856 |
11 | 1198509a319 |
12 | 5a81471a34 |
13 | 2b33c9c76b |
14 | 16840799d6 |
15 | bcce17221 |
hex | 7135b0388 |
30389502856 has 16 divisors (see below), whose sum is σ = 56988518400. Its totient is φ = 15192564624.
The previous prime is 30389502853. The next prime is 30389502907. The reversal of 30389502856 is 65820598303.
It is not an unprimeable number, because it can be changed into a prime (30389502853) 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, 213520 + ... + 326143.
It is an arithmetic number, because the mean of its divisors is an integer number (3561782400).
Almost surely, 230389502856 is an apocalyptic number.
It is an amenable number.
30389502856 is a deficient number, since it is larger than the sum of its proper divisors (26599015544).
30389502856 is a wasteful number, since it uses less digits than its factorization.
30389502856 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 546708 (or 546704 counting only the distinct ones).
The product of its (nonzero) digits is 1555200, while the sum is 49.
The spelling of 30389502856 in words is "thirty billion, three hundred eighty-nine million, five hundred two thousand, eight hundred fifty-six".
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