Base | Representation |
---|---|
bin | 11111111111100111100010 |
3 | 120210002212012 |
4 | 133333213202 |
5 | 4121341132 |
6 | 455432522 |
7 | 131201006 |
oct | 37774742 |
9 | 16702765 |
10 | 8387042 |
11 | 4809344 |
12 | 2985742 |
13 | 1978661 |
14 | 1184706 |
15 | b0a0b2 |
hex | 7ff9e2 |
8387042 has 16 divisors (see below), whose sum is σ = 13450752. Its totient is φ = 3912480.
The previous prime is 8387033. The next prime is 8387047. The reversal of 8387042 is 2407838.
It is a d-powerful number, because it can be written as 8 + 36 + 87 + 78 + 0 + 43 + 219 .
It is not an unprimeable number, because it can be changed into a prime (8387047) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338 + ... + 4109.
It is an arithmetic number, because the mean of its divisors is an integer number (840672).
Almost surely, 28387042 is an apocalyptic number.
8387042 is a gapful number since it is divisible by the number (82) formed by its first and last digit.
8387042 is a deficient number, since it is larger than the sum of its proper divisors (5063710).
8387042 is a wasteful number, since it uses less digits than its factorization.
8387042 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4513.
The product of its (nonzero) digits is 10752, while the sum is 32.
The square root of 8387042 is about 2896.0390190742. The cubic root of 8387042 is about 203.1746900762.
The spelling of 8387042 in words is "eight million, three hundred eighty-seven thousand, forty-two".
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