Base | Representation |
---|---|
bin | 10111111110100010… |
… | …01001010010110010 |
3 | 1020020010002210211120 |
4 | 23333101021102302 |
5 | 202330342303221 |
6 | 5525200523110 |
7 | 633665313000 |
oct | 137721112262 |
9 | 36203083746 |
10 | 12872619186 |
11 | 5506292359 |
12 | 25b3020496 |
13 | 12a1b9243b |
14 | 8a188ba70 |
15 | 50518e5c6 |
hex | 2ff4494b2 |
12872619186 has 32 divisors (see below), whose sum is σ = 30023606400. Its totient is φ = 3677890608.
The previous prime is 12872619163. The next prime is 12872619197. The reversal of 12872619186 is 68191627821.
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, 3125401 + ... + 3129516.
It is an arithmetic number, because the mean of its divisors is an integer number (938237700).
Almost surely, 212872619186 is an apocalyptic number.
12872619186 is an abundant number, since it is smaller than the sum of its proper divisors (17150987214).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12872619186 is an equidigital number, since it uses as much as digits as its factorization.
12872619186 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6254943 (or 6254929 counting only the distinct ones).
The product of its digits is 580608, while the sum is 51.
The spelling of 12872619186 in words is "twelve billion, eight hundred seventy-two million, six hundred nineteen thousand, one hundred eighty-six".
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