Base | Representation |
---|---|
bin | 11111000000011010111110 |
3 | 120021221210002 |
4 | 133000122332 |
5 | 4040100230 |
6 | 450114302 |
7 | 126042230 |
oct | 37003276 |
9 | 16257702 |
10 | 8128190 |
11 | 4651914 |
12 | 287b992 |
13 | 18b78a5 |
14 | 1118250 |
15 | aa8545 |
hex | 7c06be |
8128190 has 32 divisors (see below), whose sum is σ = 16934400. Its totient is φ = 2751264.
The previous prime is 8128187. The next prime is 8128213. The reversal of 8128190 is 918218.
It is a super-2 number, since 2×81281902 = 132134945352200, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5111 + ... + 6509.
It is an arithmetic number, because the mean of its divisors is an integer number (529200).
Almost surely, 28128190 is an apocalyptic number.
8128190 is an abundant number, since it is smaller than the sum of its proper divisors (8806210).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8128190 is a wasteful number, since it uses less digits than its factorization.
8128190 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1496.
The product of its (nonzero) digits is 1152, while the sum is 29.
The square root of 8128190 is about 2850.9980708517. The cubic root of 8128190 is about 201.0625944668.
The spelling of 8128190 in words is "eight million, one hundred twenty-eight thousand, one hundred ninety".
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