Base | Representation |
---|---|
bin | 110010011001000100… |
… | …1000001011100100010 |
3 | 101100022201101022221120 |
4 | 1210302021001130202 |
5 | 3233111121032133 |
6 | 121414035433110 |
7 | 10550451536355 |
oct | 1446211013442 |
9 | 340281338846 |
10 | 108215408418 |
11 | 41991860037 |
12 | 18b81155796 |
13 | a287873360 |
14 | 534819c29c |
15 | 2c355d4ab3 |
hex | 1932241722 |
108215408418 has 32 divisors (see below), whose sum is σ = 234262518336. Its totient is φ = 33128023488.
The previous prime is 108215408401. The next prime is 108215408419. The reversal of 108215408418 is 814804512801.
108215408418 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a self number, because there is not a number n which added to its sum of digits gives 108215408418.
It is not an unprimeable number, because it can be changed into a prime (108215408419) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3505896 + ... + 3536627.
It is an arithmetic number, because the mean of its divisors is an integer number (7320703698).
Almost surely, 2108215408418 is an apocalyptic number.
108215408418 is an abundant number, since it is smaller than the sum of its proper divisors (126047109918).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
108215408418 is a wasteful number, since it uses less digits than its factorization.
108215408418 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7042738.
The product of its (nonzero) digits is 81920, while the sum is 42.
The spelling of 108215408418 in words is "one hundred eight billion, two hundred fifteen million, four hundred eight thousand, four hundred eighteen".
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