Base | Representation |
---|---|
bin | 100111100101011100… |
… | …0001101010110101100 |
3 | 22010102100202110210022 |
4 | 1033022320031112230 |
5 | 2343044034023040 |
6 | 103015134501312 |
7 | 6066403010240 |
oct | 1171270152654 |
9 | 263370673708 |
10 | 85008111020 |
11 | 33062954008 |
12 | 14585064838 |
13 | 8029873511 |
14 | 4185d4c420 |
15 | 2327ec86b5 |
hex | 13cae0d5ac |
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".
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