Base | Representation |
---|---|
bin | 1111000101101100… |
… | …11001111010010010 |
3 | 202220120020100021021 |
4 | 13202312121322102 |
5 | 113042311130033 |
6 | 3415501550054 |
7 | 404514226000 |
oct | 74266317222 |
9 | 22816210237 |
10 | 8100880018 |
11 | 3487810070 |
12 | 16a0b7532a |
13 | 9c140433a |
14 | 56bc47a70 |
15 | 3262c5b2d |
hex | 1e2d99e92 |
8100880018 has 64 divisors (see below), whose sum is σ = 16368480000. Its totient is φ = 2970481920.
The previous prime is 8100879977. The next prime is 8100880031.
8100880018 is nontrivially palindromic in base 10.
It is a Harshad number since it is a multiple of its sum of digits (34).
8100880018 is a strobogrammatic number because it is the same when read upside-down.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96708 + ... + 159856.
It is an arithmetic number, because the mean of its divisors is an integer number (255757500).
Almost surely, 28100880018 is an apocalyptic number.
8100880018 is an abundant number, since it is smaller than the sum of its proper divisors (8267599982).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8100880018 is a wasteful number, since it uses less digits than its factorization.
8100880018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63200 (or 63186 counting only the distinct ones).
The product of its (nonzero) digits is 4096, while the sum is 34.
The square root of 8100880018 is about 90004.8888561060. Note that the first 4 decimals coincide. The cubic root of 8100880018 is about 2008.3715776184.
The spelling of 8100880018 in words is "eight billion, one hundred million, eight hundred eighty thousand, eighteen".
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