Base | Representation |
---|---|
bin | 101111000010… |
… | …010011110111 |
3 | 212012102220020 |
4 | 233002103313 |
5 | 11124031411 |
6 | 1120140223 |
7 | 206543124 |
oct | 57022367 |
9 | 25172806 |
10 | 12330231 |
11 | 6a61981 |
12 | 4167673 |
13 | 27293c4 |
14 | 18cd74b |
15 | 1138606 |
hex | bc24f7 |
12330231 has 16 divisors (see below), whose sum is σ = 17369856. Its totient is φ = 7764416.
The previous prime is 12330209. The next prime is 12330247. The reversal of 12330231 is 13203321.
It is a cyclic number.
It is not a de Polignac number, because 12330231 - 26 = 12330167 is a prime.
It is a super-2 number, since 2×123302312 = 304069193026722, 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 12330231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12330251) 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, 4651 + ... + 6803.
It is an arithmetic number, because the mean of its divisors is an integer number (1085616).
Almost surely, 212330231 is an apocalyptic number.
12330231 is a deficient number, since it is larger than the sum of its proper divisors (5039625).
12330231 is a wasteful number, since it uses less digits than its factorization.
12330231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2262.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 12330231 is about 3511.4428658317. The cubic root of 12330231 is about 231.0239850660.
Adding to 12330231 its reverse (13203321), we get a palindrome (25533552).
It can be divided in two parts, 12330 and 231, that added together give a triangular number (12561 = T158).
The spelling of 12330231 in words is "twelve million, three hundred thirty thousand, two hundred thirty-one".
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