Base | Representation |
---|---|
bin | 10111110110010111… |
… | …01101010111010110 |
3 | 1020001100010220220000 |
4 | 23323023231113112 |
5 | 202210321211311 |
6 | 5514311552130 |
7 | 632203633323 |
oct | 137313552726 |
9 | 36040126800 |
10 | 12804085206 |
11 | 5480632800 |
12 | 259408b646 |
13 | 1290917ca3 |
14 | 89672bb4a |
15 | 4ee153056 |
hex | 2fb2ed5d6 |
12804085206 has 60 divisors (see below), whose sum is σ = 31536035916. Its totient is φ = 3880019880.
The previous prime is 12804085153. The next prime is 12804085241. The reversal of 12804085206 is 60258040821.
12804085206 is a `hidden beast` number, since 12 + 80 + 40 + 8 + 520 + 6 = 666.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 307000 + ... + 346203.
Almost surely, 212804085206 is an apocalyptic number.
12804085206 is an abundant number, since it is smaller than the sum of its proper divisors (18731950710).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12804085206 is a wasteful number, since it uses less digits than its factorization.
12804085206 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 653239 (or 653219 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 36.
The spelling of 12804085206 in words is "twelve billion, eight hundred four million, eighty-five thousand, two hundred six".
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