Base | Representation |
---|---|
bin | 100101100100011111… |
… | …1001001011010000100 |
3 | 21201020211022012020012 |
4 | 1023020333021122010 |
5 | 2310213420030012 |
6 | 101021534325352 |
7 | 5554234440143 |
oct | 1131077113204 |
9 | 251224265205 |
10 | 80681408132 |
11 | 312426080a6 |
12 | 13778059858 |
13 | 77ba3649b0 |
14 | 3c9547375a |
15 | 217321c622 |
hex | 12c8fc9684 |
80681408132 has 48 divisors (see below), whose sum is σ = 153093128832. Its totient is φ = 36983278080.
The previous prime is 80681408099. The next prime is 80681408141. The reversal of 80681408132 is 23180418608.
It is a self number, because there is not a number n which added to its sum of digits gives 80681408132.
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 15 ways as a sum of consecutive naturals, for example, 17687132 + ... + 17691692.
It is an arithmetic number, because the mean of its divisors is an integer number (3189440184).
Almost surely, 280681408132 is an apocalyptic number.
It is an amenable number.
80681408132 is a deficient number, since it is larger than the sum of its proper divisors (72411720700).
80681408132 is a wasteful number, since it uses less digits than its factorization.
80681408132 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6828 (or 6826 counting only the distinct ones).
The product of its (nonzero) digits is 73728, while the sum is 41.
The spelling of 80681408132 in words is "eighty billion, six hundred eighty-one million, four hundred eight thousand, one hundred thirty-two".
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