Base | Representation |
---|---|
bin | 10111000000011… |
… | …00010111111100 |
3 | 111110010211200110 |
4 | 23200030113330 |
5 | 343401114133 |
6 | 31052230020 |
7 | 4532243115 |
oct | 1340142774 |
9 | 443124613 |
10 | 192988668 |
11 | 99a34274 |
12 | 5476b310 |
13 | 30ca0ba2 |
14 | 1b8b920c |
15 | 11e21c63 |
hex | b80c5fc |
192988668 has 24 divisors (see below), whose sum is σ = 455369040. Its totient is φ = 63606400.
The previous prime is 192988651. The next prime is 192988669. The reversal of 192988668 is 866889291.
192988668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (192988669) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89283 + ... + 91418.
It is an arithmetic number, because the mean of its divisors is an integer number (18973710).
Almost surely, 2192988668 is an apocalyptic number.
It is an amenable number.
192988668 is an abundant number, since it is smaller than the sum of its proper divisors (262380372).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
192988668 is a wasteful number, since it uses less digits than its factorization.
192988668 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 180797 (or 180795 counting only the distinct ones).
The product of its digits is 2985984, while the sum is 57.
The square root of 192988668 is about 13892.0361358586. The cubic root of 192988668 is about 577.8883458294. Note that the first 3 decimals are identical.
It can be divided in two parts, 19298 and 8668, that added together give a triangular number (27966 = T236).
The spelling of 192988668 in words is "one hundred ninety-two million, nine hundred eighty-eight thousand, six hundred sixty-eight".
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