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85008111020 = 22572572362649
BaseRepresentation
bin100111100101011100…
…0001101010110101100
322010102100202110210022
41033022320031112230
52343044034023040
6103015134501312
76066403010240
oct1171270152654
9263370673708
1085008111020
1133062954008
1214585064838
138029873511
144185d4c420
152327ec86b5
hex13cae0d5ac

85008111020 has 48 divisors (see below), whose sum is σ = 204813403200. Its totient is φ = 29032218624.

The previous prime is 85008110987. The next prime is 85008111029. The reversal of 85008111020 is 2011180058.

It is not an unprimeable number, because it can be changed into a prime (85008111029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1145345 + ... + 1217304.

It is an arithmetic number, because the mean of its divisors is an integer number (4266945900).

Almost surely, 285008111020 is an apocalyptic number.

It is an amenable number.

85008111020 is an abundant number, since it is smaller than the sum of its proper divisors (119805292180).

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

85008111020 is a wasteful number, since it uses less digits than its factorization.

85008111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362922 (or 2362920 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 26.

Adding to 85008111020 its reverse (2011180058), we get a palindrome (87019291078).

The spelling of 85008111020 in words is "eighty-five billion, eight million, one hundred eleven thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 257 514 1028 1285 1799 2570 3598 5140 7196 8995 17990 35980 2362649 4725298 9450596 11813245 16538543 23626490 33077086 47252980 66154172 82692715 165385430 330770860 607200793 1214401586 2428803172 3036003965 4250405551 6072007930 8500811102 12144015860 17001622204 21252027755 42504055510 85008111020