Base | Representation |
---|---|
bin | 10110100000001101… |
… | …00111001011010000 |
3 | 1011011222011002120000 |
4 | 23100012213023100 |
5 | 144220310010343 |
6 | 5314452450000 |
7 | 605246413041 |
oct | 132006471320 |
9 | 34158132500 |
10 | 12081328848 |
11 | 513a6601a6 |
12 | 2412019900 |
13 | 11a6c6b9c4 |
14 | 82874c8c8 |
15 | 4aa987ed3 |
hex | 2d01a72d0 |
12081328848 has 100 divisors (see below), whose sum is σ = 35780218848. Its totient is φ = 3933437760.
The previous prime is 12081328793. The next prime is 12081328849. The reversal of 12081328848 is 84882318021.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12081328849) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 52668 + ... + 164123.
Almost surely, 212081328848 is an apocalyptic number.
12081328848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
12081328848 is an abundant number, since it is smaller than the sum of its proper divisors (23698890000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12081328848 is a wasteful number, since it uses less digits than its factorization.
12081328848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 216854 (or 216839 counting only the distinct ones).
The product of its (nonzero) digits is 196608, while the sum is 45.
The spelling of 12081328848 in words is "twelve billion, eighty-one million, three hundred twenty-eight thousand, eight hundred forty-eight".
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