Base | Representation |
---|---|
bin | 10111111111111011… |
… | …11000100010010100 |
3 | 1020020221011122102002 |
4 | 23333331320202110 |
5 | 202341343101103 |
6 | 5530300134432 |
7 | 634200066650 |
oct | 137775704224 |
9 | 36227148362 |
10 | 12884347028 |
11 | 5511972693 |
12 | 25b6b37418 |
13 | 12a443a5a7 |
14 | 8a3261a60 |
15 | 506209488 |
hex | 2fff78894 |
12884347028 has 12 divisors (see below), whose sum is σ = 25768694112. Its totient is φ = 5521863000.
The previous prime is 12884347019. The next prime is 12884347033. The reversal of 12884347028 is 82074348821.
It is a happy number.
12884347028 is an admirable number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230077598 + ... + 230077653.
It is an arithmetic number, because the mean of its divisors is an integer number (2147391176).
Almost surely, 212884347028 is an apocalyptic number.
It is an amenable number.
12884347028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12884347028 is a wasteful number, since it uses less digits than its factorization.
12884347028 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 460155262 (or 460155260 counting only the distinct ones).
The product of its (nonzero) digits is 688128, while the sum is 47.
The spelling of 12884347028 in words is "twelve billion, eight hundred eighty-four million, three hundred forty-seven thousand, twenty-eight".
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