Base | Representation |
---|---|
bin | 10110100100010001… |
… | …11000111001101000 |
3 | 1011021100102011100201 |
4 | 23102020320321220 |
5 | 144303030331133 |
6 | 5322112441544 |
7 | 606142611421 |
oct | 132210707150 |
9 | 34240364321 |
10 | 12115480168 |
11 | 5157966630 |
12 | 24215492b4 |
13 | 11b106839c |
14 | 82d0bc648 |
15 | 4ad981d7d |
hex | 2d2238e68 |
12115480168 has 64 divisors (see below), whose sum is σ = 26413672320. Its totient is φ = 5148672000.
The previous prime is 12115480123. The next prime is 12115480187. The reversal of 12115480168 is 86108451121.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199080 + ... + 252712.
It is an arithmetic number, because the mean of its divisors is an integer number (412713630).
Almost surely, 212115480168 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12115480168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13206836160).
12115480168 is an abundant number, since it is smaller than the sum of its proper divisors (14298192152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12115480168 is a wasteful number, since it uses less digits than its factorization.
12115480168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53818 (or 53814 counting only the distinct ones).
The product of its (nonzero) digits is 15360, while the sum is 37.
The spelling of 12115480168 in words is "twelve billion, one hundred fifteen million, four hundred eighty thousand, one hundred sixty-eight".
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