Base | Representation |
---|---|
bin | 11011101000010… |
… | …00000000101001 |
3 | 121011010001001220 |
4 | 31310020000221 |
5 | 433313034410 |
6 | 34555332253 |
7 | 5512665522 |
oct | 1564100051 |
9 | 534101056 |
10 | 231768105 |
11 | 109910898 |
12 | 65751089 |
13 | 3902acba |
14 | 22ad1849 |
15 | 15532070 |
hex | dd08029 |
231768105 has 16 divisors (see below), whose sum is σ = 371049984. Its totient is φ = 123536000.
The previous prime is 231768101. The next prime is 231768113. The reversal of 231768105 is 501867132.
It is not a de Polignac number, because 231768105 - 22 = 231768101 is a prime.
It is not an unprimeable number, because it can be changed into a prime (231768101) 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, 29605 + ... + 36605.
It is an arithmetic number, because the mean of its divisors is an integer number (23190624).
Almost surely, 2231768105 is an apocalyptic number.
It is an amenable number.
231768105 is a deficient number, since it is larger than the sum of its proper divisors (139281879).
231768105 is a wasteful number, since it uses less digits than its factorization.
231768105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9216.
The product of its (nonzero) digits is 10080, while the sum is 33.
The square root of 231768105 is about 15223.9319822443. The cubic root of 231768105 is about 614.2585684648.
The spelling of 231768105 in words is "two hundred thirty-one million, seven hundred sixty-eight thousand, one hundred five".
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