Search a number
-
+
8685049580 = 225538193443
BaseRepresentation
bin10000001011010101…
…10101011011101100
3211102021110020020222
420011222311123230
5120241333041310
63553450430512
7425136463154
oct100552653354
924367406228
108685049580
113757536329
121824732438
13a854495bc
145c566d764
1535c718055
hex205ab56ec

8685049580 has 24 divisors (see below), whose sum is σ = 18582730992. Its totient is φ = 3408471872.

The previous prime is 8685049577. The next prime is 8685049589. The reversal of 8685049580 is 859405868.

8685049580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (8685049589) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4095662 + ... + 4097781.

It is an arithmetic number, because the mean of its divisors is an integer number (774280458).

Almost surely, 28685049580 is an apocalyptic number.

It is an amenable number.

8685049580 is an abundant number, since it is smaller than the sum of its proper divisors (9897681412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8685049580 is a wasteful number, since it uses less digits than its factorization.

8685049580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193505 (or 8193503 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 53.

The square root of 8685049580 is about 93193.6134077867. The cubic root of 8685049580 is about 2055.5313303771.

The spelling of 8685049580 in words is "eight billion, six hundred eighty-five million, forty-nine thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 8193443 16386886 32773772 40967215 81934430 163868860 434252479 868504958 1737009916 2171262395 4342524790 8685049580