Base | Representation |
---|---|
bin | 11100101011000011… |
… | …000111000101111111 |
3 | 2221110121011222210212 |
4 | 130223003013011333 |
5 | 1001022433204342 |
6 | 22050544223035 |
7 | 2136634145312 |
oct | 345303070577 |
9 | 87417158725 |
10 | 30787006847 |
11 | 1206950aa13 |
12 | 5b7260aa7b |
13 | 2b98448c1c |
14 | 16c0b90979 |
15 | c02c86182 |
hex | 72b0c717f |
30787006847 has 2 divisors, whose sum is σ = 30787006848. Its totient is φ = 30787006846.
The previous prime is 30787006739. The next prime is 30787006849. The reversal of 30787006847 is 74860078703.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30787006847 is a prime.
Together with 30787006849, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 30787006795 and 30787006804.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30787006849) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15393503423 + 15393503424.
It is an arithmetic number, because the mean of its divisors is an integer number (15393503424).
Almost surely, 230787006847 is an apocalyptic number.
30787006847 is a deficient number, since it is larger than the sum of its proper divisors (1).
30787006847 is an equidigital number, since it uses as much as digits as its factorization.
30787006847 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1580544, while the sum is 50.
The spelling of 30787006847 in words is "thirty billion, seven hundred eighty-seven million, six thousand, eight hundred forty-seven".
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