Base | Representation |
---|---|
bin | 11011100100111… |
… | …11110010010101 |
3 | 121010022100110210 |
4 | 31302133302111 |
5 | 433210404310 |
6 | 34542240033 |
7 | 5506240104 |
oct | 1562376225 |
9 | 533270423 |
10 | 231341205 |
11 | 10964a087 |
12 | 65586019 |
13 | 38c0b8b4 |
14 | 22a2003b |
15 | 1549a820 |
hex | dc9fc95 |
231341205 has 32 divisors (see below), whose sum is σ = 381354624. Its totient is φ = 119667456.
The previous prime is 231341179. The next prime is 231341233. The reversal of 231341205 is 502143132.
It is not a de Polignac number, because 231341205 - 26 = 231341141 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289867 + ... + 290663.
It is an arithmetic number, because the mean of its divisors is an integer number (11917332).
Almost surely, 2231341205 is an apocalyptic number.
It is an amenable number.
231341205 is a deficient number, since it is larger than the sum of its proper divisors (150013419).
231341205 is a wasteful number, since it uses less digits than its factorization.
231341205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1365.
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 231341205 is about 15209.9048320494. The cubic root of 231341205 is about 613.8811967972.
Adding to 231341205 its reverse (502143132), we get a palindrome (733484337).
The spelling of 231341205 in words is "two hundred thirty-one million, three hundred forty-one thousand, two hundred five".
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