Base | Representation |
---|---|
bin | 110010011110… |
… | …000010100101 |
3 | 220220011111002 |
4 | 302132002211 |
5 | 11341331440 |
6 | 1151323045 |
7 | 220312100 |
oct | 62360245 |
9 | 26804432 |
10 | 13230245 |
11 | 7517096 |
12 | 4520485 |
13 | 2982c62 |
14 | 1a85737 |
15 | 1265115 |
hex | c9e0a5 |
13230245 has 12 divisors (see below), whose sum is σ = 18468684. Its totient is φ = 9072000.
The previous prime is 13230223. The next prime is 13230253. The reversal of 13230245 is 54203231.
It is a happy number.
13230245 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 3786916 + 9443329 = 1946^2 + 3073^2 .
It is a de Polignac number, because none of the positive numbers 2k-13230245 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26756 + ... + 27245.
It is an arithmetic number, because the mean of its divisors is an integer number (1539057).
Almost surely, 213230245 is an apocalyptic number.
It is an amenable number.
13230245 is a deficient number, since it is larger than the sum of its proper divisors (5238439).
13230245 is an equidigital number, since it uses as much as digits as its factorization.
13230245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54020 (or 54013 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 20.
The square root of 13230245 is about 3637.3403745044. The cubic root of 13230245 is about 236.5135148351.
Adding to 13230245 its reverse (54203231), we get a palindrome (67433476).
The spelling of 13230245 in words is "thirteen million, two hundred thirty thousand, two hundred forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •