Base | Representation |
---|---|
bin | 1111010011101000… |
… | …01101011010101100 |
3 | 210012201010200222110 |
4 | 13221310031122230 |
5 | 113312220320233 |
6 | 3435234444020 |
7 | 410433452301 |
oct | 75164153254 |
9 | 23181120873 |
10 | 8217745068 |
11 | 3537780555 |
12 | 1714133610 |
13 | a0c6a1360 |
14 | 57d5890a8 |
15 | 3316ac663 |
hex | 1e9d0d6ac |
8217745068 has 24 divisors (see below), whose sum is σ = 20649718768. Its totient is φ = 2528536896.
The previous prime is 8217745061. The next prime is 8217745069. The reversal of 8217745068 is 8605477128.
It is not an unprimeable number, because it can be changed into a prime (8217745061) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26338771 + ... + 26339082.
Almost surely, 28217745068 is an apocalyptic number.
It is an amenable number.
8217745068 is an abundant number, since it is smaller than the sum of its proper divisors (12431973700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8217745068 is a wasteful number, since it uses less digits than its factorization.
8217745068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52677873 (or 52677871 counting only the distinct ones).
The product of its (nonzero) digits is 752640, while the sum is 48.
The square root of 8217745068 is about 90651.7791772451. The cubic root of 8217745068 is about 2017.9832392429.
The spelling of 8217745068 in words is "eight billion, two hundred seventeen million, seven hundred forty-five thousand, sixty-eight".
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