Base | Representation |
---|---|
bin | 11111011110101100010101 |
3 | 120112020212100 |
4 | 133132230111 |
5 | 4103032211 |
6 | 452512313 |
7 | 130066560 |
oct | 37365425 |
9 | 16466770 |
10 | 8252181 |
11 | 4726a93 |
12 | 291b699 |
13 | 192c162 |
14 | 114b4d7 |
15 | ad0156 |
hex | 7deb15 |
8252181 has 12 divisors (see below), whose sum is σ = 13622752. Its totient is φ = 4715496.
The previous prime is 8252149. The next prime is 8252183. The reversal of 8252181 is 1812528.
8252181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 8252181 - 25 = 8252149 is a prime.
It is a super-2 number, since 2×82521812 = 136196982513522, which contains 22 as substring.
It is a Duffinian number.
8252181 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8252183) 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, 65431 + ... + 65556.
Almost surely, 28252181 is an apocalyptic number.
It is an amenable number.
8252181 is a deficient number, since it is larger than the sum of its proper divisors (5370571).
8252181 is a wasteful number, since it uses less digits than its factorization.
8252181 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 131000 (or 130997 counting only the distinct ones).
The product of its digits is 1280, while the sum is 27.
The square root of 8252181 is about 2872.6609615477. The cubic root of 8252181 is about 202.0798054107.
The spelling of 8252181 in words is "eight million, two hundred fifty-two thousand, one hundred eighty-one".
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