Search a number
-
+
80681408132 = 221316320874561
BaseRepresentation
bin100101100100011111…
…1001001011010000100
321201020211022012020012
41023020333021122010
52310213420030012
6101021534325352
75554234440143
oct1131077113204
9251224265205
1080681408132
11312426080a6
1213778059858
1377ba3649b0
143c9547375a
15217321c622
hex12c8fc9684

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".

Divisors: 1 2 4 13 26 52 163 326 652 2087 2119 4174 4238 4561 8348 8476 9122 18244 27131 54262 59293 108524 118586 237172 340181 680362 743443 1360724 1486886 2973772 4422353 8844706 9518807 9664759 17689412 19037614 19329518 38075228 38659036 123744491 247488982 494977964 1551565541 3103131082 6206262164 20170352033 40340704066 80681408132