Base | Representation |
---|---|
bin | 110001100010… |
… | …011101000100 |
3 | 220102202200122 |
4 | 301202131010 |
5 | 11311024210 |
6 | 1142201112 |
7 | 215244404 |
oct | 61423504 |
9 | 26382618 |
10 | 12986180 |
11 | 736a789 |
12 | 4423198 |
13 | 28c8b3c |
14 | 1a20804 |
15 | 1217b55 |
hex | c62744 |
12986180 has 24 divisors (see below), whose sum is σ = 27603072. Its totient is φ = 5131232.
The previous prime is 12986153. The next prime is 12986203. The reversal of 12986180 is 8168921.
It is a self number, because there is not a number n which added to its sum of digits gives 12986180.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2252 + ... + 5571.
It is an arithmetic number, because the mean of its divisors is an integer number (1150128).
Almost surely, 212986180 is an apocalyptic number.
12986180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12986180 is an abundant number, since it is smaller than the sum of its proper divisors (14616892).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12986180 is a wasteful number, since it uses less digits than its factorization.
12986180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7915 (or 7913 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 35.
The square root of 12986180 is about 3603.6342766713. The cubic root of 12986180 is about 235.0501175740.
The spelling of 12986180 in words is "twelve million, nine hundred eighty-six thousand, one hundred eighty".
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