Base | Representation |
---|---|
bin | 1100011001001011111… |
… | …1100000001110101000 |
3 | 202100120201122012120112 |
4 | 3012102333200032220 |
5 | 11442024344034440 |
6 | 241451444113452 |
7 | 21245226020411 |
oct | 3062277401650 |
9 | 670521565515 |
10 | 212919518120 |
11 | 82331576401 |
12 | 35322395888 |
13 | 17102b2235a |
14 | a43bc9a808 |
15 | 58127c9965 |
hex | 3192fe03a8 |
212919518120 has 64 divisors (see below), whose sum is σ = 480173244480. Its totient is φ = 84971690496.
The previous prime is 212919518089. The next prime is 212919518137. The reversal of 212919518120 is 21815919212.
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, 66807167 + ... + 66810353.
It is an arithmetic number, because the mean of its divisors is an integer number (7502706945).
Almost surely, 2212919518120 is an apocalyptic number.
212919518120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
212919518120 is an abundant number, since it is smaller than the sum of its proper divisors (267253726360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212919518120 is a wasteful number, since it uses less digits than its factorization.
212919518120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6522 (or 6518 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 41.
The spelling of 212919518120 in words is "two hundred twelve billion, nine hundred nineteen million, five hundred eighteen thousand, one hundred twenty".
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