Base | Representation |
---|---|
bin | 10111111110010011… |
… | …10100010010010000 |
3 | 1020012222111012122021 |
4 | 23333021310102100 |
5 | 202324344320003 |
6 | 5525051421224 |
7 | 633643062151 |
oct | 137711642220 |
9 | 36188435567 |
10 | 12870698128 |
11 | 55051a0002 |
12 | 25b2454814 |
13 | 12a166bc12 |
14 | 8a150b928 |
15 | 504e102bd |
hex | 2ff274490 |
12870698128 has 20 divisors (see below), whose sum is σ = 24967827180. Its totient is φ = 6427387904.
The previous prime is 12870698119. The next prime is 12870698131. The reversal of 12870698128 is 82189607821.
It is a happy number.
12870698128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 5039864064 + 7830834064 = 70992^2 + 88492^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484225 + ... + 510112.
It is an arithmetic number, because the mean of its divisors is an integer number (1248391359).
Almost surely, 212870698128 is an apocalyptic number.
It is an amenable number.
12870698128 is a deficient number, since it is larger than the sum of its proper divisors (12097129052).
12870698128 is an equidigital number, since it uses as much as digits as its factorization.
12870698128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 995154 (or 995148 counting only the distinct ones).
The product of its (nonzero) digits is 774144, while the sum is 52.
The spelling of 12870698128 in words is "twelve billion, eight hundred seventy million, six hundred ninety-eight thousand, one hundred twenty-eight".
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