Base | Representation |
---|---|
bin | 11000011000000111010111 |
3 | 110000122202020 |
4 | 120120013113 |
5 | 3113441411 |
6 | 344544223 |
7 | 105213261 |
oct | 30300727 |
9 | 13018666 |
10 | 6390231 |
11 | 3675091 |
12 | 2182073 |
13 | 1429803 |
14 | bc4b31 |
15 | 863606 |
hex | 6181d7 |
6390231 has 16 divisors (see below), whose sum is σ = 8793600. Its totient is φ = 4125888.
The previous prime is 6390227. The next prime is 6390239. The reversal of 6390231 is 1320936.
It is not a de Polignac number, because 6390231 - 22 = 6390227 is a prime.
It is a super-2 number, since 2×63902312 = 81670104466722, which contains 22 as substring.
6390231 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6390239) 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 15 ways as a sum of consecutive naturals, for example, 13755 + ... + 14211.
It is an arithmetic number, because the mean of its divisors is an integer number (549600).
Almost surely, 26390231 is an apocalyptic number.
6390231 is a deficient number, since it is larger than the sum of its proper divisors (2403369).
6390231 is a wasteful number, since it uses less digits than its factorization.
6390231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 598.
The product of its (nonzero) digits is 972, while the sum is 24.
The square root of 6390231 is about 2527.8906226338. The cubic root of 6390231 is about 185.5690392365.
The spelling of 6390231 in words is "six million, three hundred ninety thousand, two hundred thirty-one".
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