Base | Representation |
---|---|
bin | 11110100110000100000111 |
3 | 120002110200121 |
4 | 132212010013 |
5 | 4023121411 |
6 | 443522411 |
7 | 125112412 |
oct | 36460407 |
9 | 16073617 |
10 | 8020231 |
11 | 458879a |
12 | 2829407 |
13 | 187a6cb |
14 | 10cab79 |
15 | a86571 |
hex | 7a6107 |
8020231 has 12 divisors (see below), whose sum is σ = 8548936. Its totient is φ = 7514640.
The previous prime is 8020183. The next prime is 8020237. The reversal of 8020231 is 1320208.
It is a happy number.
It is not a de Polignac number, because 8020231 - 29 = 8019719 is a prime.
It is a super-2 number, since 2×80202312 = 128648210586722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8020237) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112926 + ... + 112996.
Almost surely, 28020231 is an apocalyptic number.
8020231 is a deficient number, since it is larger than the sum of its proper divisors (528705).
8020231 is an equidigital number, since it uses as much as digits as its factorization.
8020231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 222 (or 151 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 8020231 is about 2832.0012358754. The cubic root of 8020231 is about 200.1684497502.
Adding to 8020231 its reverse (1320208), we get a palindrome (9340439).
The spelling of 8020231 in words is "eight million, twenty thousand, two hundred thirty-one".
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