Base | Representation |
---|---|
bin | 11100100011110… |
… | …00011001101010 |
3 | 121200210100012001 |
4 | 32101320121222 |
5 | 442312142430 |
6 | 35434441214 |
7 | 5636204260 |
oct | 1621703152 |
9 | 550710161 |
10 | 239568490 |
11 | 113259397 |
12 | 6829320a |
13 | 3a82c605 |
14 | 23b62430 |
15 | 160733ca |
hex | e47866a |
239568490 has 16 divisors (see below), whose sum is σ = 492826752. Its totient is φ = 82137744.
The previous prime is 239568481. The next prime is 239568491. The reversal of 239568490 is 94865932.
239568490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2395684902 = 114786122801760200, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 239568490.
It is not an unprimeable number, because it can be changed into a prime (239568491) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1711134 + ... + 1711273.
It is an arithmetic number, because the mean of its divisors is an integer number (30801672).
Almost surely, 2239568490 is an apocalyptic number.
239568490 is an abundant number, since it is smaller than the sum of its proper divisors (253258262).
239568490 is a wasteful number, since it uses less digits than its factorization.
239568490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3422421.
The product of its (nonzero) digits is 466560, while the sum is 46.
The square root of 239568490 is about 15478.0001938235. Note that the first 3 decimals coincide. The cubic root of 239568490 is about 621.0738327822.
The spelling of 239568490 in words is "two hundred thirty-nine million, five hundred sixty-eight thousand, four hundred ninety".
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