Base | Representation |
---|---|
bin | 11100001110010101… |
… | …000000100001010000 |
3 | 2220020000111121011111 |
4 | 130032111000201100 |
5 | 444031110043443 |
6 | 21531052423104 |
7 | 2121663413650 |
oct | 341625004120 |
9 | 86200447144 |
10 | 30305159248 |
11 | 11941521761 |
12 | 5a59177a94 |
13 | 2b1c67b2c0 |
14 | 1676ba2360 |
15 | bc580669d |
hex | 70e540850 |
30305159248 has 40 divisors (see below), whose sum is σ = 72266152448. Its totient is φ = 11988853632.
The previous prime is 30305159243. The next prime is 30305159257. The reversal of 30305159248 is 84295150303.
It is a self number, because there is not a number n which added to its sum of digits gives 30305159248.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30305159243) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10405536 + ... + 10408447.
Almost surely, 230305159248 is an apocalyptic number.
It is an amenable number.
30305159248 is an abundant number, since it is smaller than the sum of its proper divisors (41960993200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30305159248 is a wasteful number, since it uses less digits than its factorization.
30305159248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20814011 (or 20814005 counting only the distinct ones).
The product of its (nonzero) digits is 129600, while the sum is 40.
The spelling of 30305159248 in words is "thirty billion, three hundred five million, one hundred fifty-nine thousand, two hundred forty-eight".
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