Base | Representation |
---|---|
bin | 11110111011100001001101 |
3 | 120020221020100 |
4 | 132323201031 |
5 | 4033424414 |
6 | 445441313 |
7 | 125626542 |
oct | 36734115 |
9 | 16227210 |
10 | 8108109 |
11 | 4638819 |
12 | 2870239 |
13 | 18ab6c9 |
14 | 1110bc9 |
15 | aa2609 |
hex | 7bb84d |
8108109 has 12 divisors (see below), whose sum is σ = 11785696. Its totient is φ = 5371272.
The previous prime is 8108083. The next prime is 8108137. The reversal of 8108109 is 9018018.
It is not a de Polignac number, because 8108109 - 215 = 8075341 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8108159) 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, 1297 + ... + 4230.
Almost surely, 28108109 is an apocalyptic number.
It is an amenable number.
8108109 is a deficient number, since it is larger than the sum of its proper divisors (3677587).
8108109 is a wasteful number, since it uses less digits than its factorization.
8108109 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5696 (or 5693 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 27.
The square root of 8108109 is about 2847.4741438686. The cubic root of 8108109 is about 200.8968803495.
Subtracting 8108109 from its reverse (9018018), we obtain a palindrome (909909).
The spelling of 8108109 in words is "eight million, one hundred eight thousand, one hundred nine".
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