Base | Representation |
---|---|
bin | 11111011000110100011101 |
3 | 120111000212101 |
4 | 133120310131 |
5 | 4101300000 |
6 | 452205101 |
7 | 126636463 |
oct | 37306435 |
9 | 16430771 |
10 | 8228125 |
11 | 470aa04 |
12 | 2909791 |
13 | 1921219 |
14 | 1142833 |
15 | ac7e6a |
hex | 7d8d1d |
8228125 has 12 divisors (see below), whose sum is σ = 10288404. Its totient is φ = 6580000.
The previous prime is 8228123. The next prime is 8228131. The reversal of 8228125 is 5218228.
It can be written as a sum of positive squares in 6 ways, for example, as 7739524 + 488601 = 2782^2 + 699^2 .
It is not a de Polignac number, because 8228125 - 21 = 8228123 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 8228093 and 8228102.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8228123) 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, 1809 + ... + 4441.
It is an arithmetic number, because the mean of its divisors is an integer number (857367).
Almost surely, 28228125 is an apocalyptic number.
It is an amenable number.
8228125 is a deficient number, since it is larger than the sum of its proper divisors (2060279).
8228125 is an frugal number, since it uses more digits than its factorization.
8228125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2658 (or 2638 counting only the distinct ones).
The product of its digits is 2560, while the sum is 28.
The square root of 8228125 is about 2868.4708469845. The cubic root of 8228125 is about 201.8832528009.
The spelling of 8228125 in words is "eight million, two hundred twenty-eight thousand, one hundred twenty-five".
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