Base | Representation |
---|---|
bin | 101110011111… |
… | …101010101010 |
3 | 211221020020122 |
4 | 232133222222 |
5 | 11110011310 |
6 | 1113123242 |
7 | 205412330 |
oct | 56375252 |
9 | 24836218 |
10 | 12188330 |
11 | 6975300 |
12 | 40b9522 |
13 | 26a993b |
14 | 1893b50 |
15 | 110b555 |
hex | b9faaa |
12188330 has 48 divisors (see below), whose sum is σ = 27578880. Its totient is φ = 3796320.
The previous prime is 12188273. The next prime is 12188347. The reversal of 12188330 is 3388121.
It is a self number, because there is not a number n which added to its sum of digits gives 12188330.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7751 + ... + 9189.
It is an arithmetic number, because the mean of its divisors is an integer number (574560).
Almost surely, 212188330 is an apocalyptic number.
12188330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12188330 is an abundant number, since it is smaller than the sum of its proper divisors (15390550).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12188330 is a wasteful number, since it uses less digits than its factorization.
12188330 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1475 (or 1464 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 26.
The square root of 12188330 is about 3491.1788839875. The cubic root of 12188330 is about 230.1343260716.
The spelling of 12188330 in words is "twelve million, one hundred eighty-eight thousand, three hundred thirty".
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