Base | Representation |
---|---|
bin | 11011011011110… |
… | …10110111011101 |
3 | 121001001101122202 |
4 | 31231322313131 |
5 | 432404011110 |
6 | 34500421245 |
7 | 5463112124 |
oct | 1555726735 |
9 | 531041582 |
10 | 230141405 |
11 | 1089aa70a |
12 | 650a7825 |
13 | 388ab760 |
14 | 227caabb |
15 | 153100a5 |
hex | db7addd |
230141405 has 16 divisors (see below), whose sum is σ = 304671024. Its totient is φ = 165803520.
The previous prime is 230141383. The next prime is 230141407. The reversal of 230141405 is 504141032.
It can be written as a sum of positive squares in 8 ways, for example, as 44009956 + 186131449 = 6634^2 + 13643^2 .
It is not a de Polignac number, because 230141405 - 210 = 230140381 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230141407) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40514 + ... + 45843.
It is an arithmetic number, because the mean of its divisors is an integer number (19041939).
Almost surely, 2230141405 is an apocalyptic number.
It is an amenable number.
230141405 is a deficient number, since it is larger than the sum of its proper divisors (74529619).
230141405 is a wasteful number, since it uses less digits than its factorization.
230141405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86416.
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 230141405 is about 15170.4121565632. The cubic root of 230141405 is about 612.8181038177.
Adding to 230141405 its reverse (504141032), we get a palindrome (734282437).
The spelling of 230141405 in words is "two hundred thirty million, one hundred forty-one thousand, four hundred five".
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