Base | Representation |
---|---|
bin | 11100110001000010… |
… | …011110110100111000 |
3 | 2221201121021211122101 |
4 | 130301002132310320 |
5 | 1001224200131313 |
6 | 22104534233144 |
7 | 2142264314410 |
oct | 346102366470 |
9 | 87647254571 |
10 | 30887505208 |
11 | 1211021190a |
12 | 5ba01b57b4 |
13 | 2bb3205501 |
14 | 16d0271640 |
15 | c0b9d85dd |
hex | 73109ed38 |
30887505208 has 16 divisors (see below), whose sum is σ = 66187511280. Its totient is φ = 13237502208.
The previous prime is 30887505193. The next prime is 30887505227. The reversal of 30887505208 is 80250578803.
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 275781241 + ... + 275781352.
It is an arithmetic number, because the mean of its divisors is an integer number (4136719455).
Almost surely, 230887505208 is an apocalyptic number.
It is an amenable number.
30887505208 is an abundant number, since it is smaller than the sum of its proper divisors (35300006072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30887505208 is a wasteful number, since it uses less digits than its factorization.
30887505208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 551562606 (or 551562602 counting only the distinct ones).
The product of its (nonzero) digits is 537600, while the sum is 46.
The spelling of 30887505208 in words is "thirty billion, eight hundred eighty-seven million, five hundred five thousand, two hundred eight".
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