Base | Representation |
---|---|
bin | 110010011011… |
… | …100110000110 |
3 | 220212122202011 |
4 | 302123212012 |
5 | 11341021410 |
6 | 1151204434 |
7 | 220240642 |
oct | 62334606 |
9 | 26778664 |
10 | 13220230 |
11 | 750a611 |
12 | 451671a |
13 | 297b52a |
14 | 1a81c22 |
15 | 126218a |
hex | c9b986 |
13220230 has 16 divisors (see below), whose sum is σ = 24617520. Its totient is φ = 5105632.
The previous prime is 13220213. The next prime is 13220231. The reversal of 13220230 is 3202231.
It is a happy number.
13220230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a self number, because there is not a number n which added to its sum of digits gives 13220230.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13220231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22504 + ... + 23083.
It is an arithmetic number, because the mean of its divisors is an integer number (1538595).
Almost surely, 213220230 is an apocalyptic number.
13220230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13220230 is a deficient number, since it is larger than the sum of its proper divisors (11397290).
13220230 is a wasteful number, since it uses less digits than its factorization.
13220230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45623.
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 13220230 is about 3635.9634211581. The cubic root of 13220230 is about 236.4538212874.
Adding to 13220230 its reverse (3202231), we get a palindrome (16422461).
The spelling of 13220230 in words is "thirteen million, two hundred twenty thousand, two hundred thirty".
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