Base | Representation |
---|---|
bin | 101100010011… |
… | …1011100000111 |
3 | 1121201012212100 |
4 | 1120213130013 |
5 | 21421331330 |
6 | 2145523143 |
7 | 401311401 |
oct | 130473407 |
9 | 47635770 |
10 | 23230215 |
11 | 12127228 |
12 | 79434b3 |
13 | 4a747b8 |
14 | 3129b71 |
15 | 208d060 |
hex | 1627707 |
23230215 has 12 divisors (see below), whose sum is σ = 40265784. Its totient is φ = 12389424.
The previous prime is 23230213. The next prime is 23230219. The reversal of 23230215 is 51203232.
It is not a de Polignac number, because 23230215 - 21 = 23230213 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23230213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258069 + ... + 258158.
It is an arithmetic number, because the mean of its divisors is an integer number (3355482).
Almost surely, 223230215 is an apocalyptic number.
23230215 is a deficient number, since it is larger than the sum of its proper divisors (17035569).
23230215 is a wasteful number, since it uses less digits than its factorization.
23230215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 516238 (or 516235 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 23230215 is about 4819.7733349194. The cubic root of 23230215 is about 285.3323915025.
Adding to 23230215 its reverse (51203232), we get a palindrome (74433447).
The spelling of 23230215 in words is "twenty-three million, two hundred thirty thousand, two hundred fifteen".
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