Base | Representation |
---|---|
bin | 111100001001001… |
… | …1101011011000100 |
3 | 12012122102100122200 |
4 | 1320102131123010 |
5 | 13113113330103 |
6 | 532130554500 |
7 | 101003416062 |
oct | 17022353304 |
9 | 5178370580 |
10 | 2018105028 |
11 | 9461931a5 |
12 | 483a38a30 |
13 | 2621460b4 |
14 | 15204d032 |
15 | bc28c0a3 |
hex | 7849d6c4 |
2018105028 has 36 divisors (see below), whose sum is σ = 5110433328. Its totient is φ = 671500080.
The previous prime is 2018105027. The next prime is 2018105051. The reversal of 2018105028 is 8205018102.
It is a tau number, because it is divible by the number of its divisors (36).
It is a junction number, because it is equal to n+sod(n) for n = 2018104992 and 2018105010.
It is not an unprimeable number, because it can be changed into a prime (2018105027) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29518 + ... + 70053.
Almost surely, 22018105028 is an apocalyptic number.
It is an amenable number.
2018105028 is an abundant number, since it is smaller than the sum of its proper divisors (3092328300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2018105028 is a wasteful number, since it uses less digits than its factorization.
2018105028 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 100144 (or 100139 counting only the distinct ones).
The product of its (nonzero) digits is 1280, while the sum is 27.
The square root of 2018105028 is about 44923.3238752432. The cubic root of 2018105028 is about 1263.7114528889.
The spelling of 2018105028 in words is "two billion, eighteen million, one hundred five thousand, twenty-eight".
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