Base | Representation |
---|---|
bin | 110010011011… |
… | …100100100010 |
3 | 220212122121110 |
4 | 302123210202 |
5 | 11341021010 |
6 | 1151204150 |
7 | 220240440 |
oct | 62334442 |
9 | 26778543 |
10 | 13220130 |
11 | 750a530 |
12 | 4516656 |
13 | 297b481 |
14 | 1a81b90 |
15 | 1262120 |
hex | c9b922 |
13220130 has 128 divisors (see below), whose sum is σ = 40642560. Its totient is φ = 2672640.
The previous prime is 13220117. The next prime is 13220131. The reversal of 13220130 is 3102231.
It is a happy number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (13220131) by changing a digit.
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 63 ways as a sum of consecutive naturals, for example, 136242 + ... + 136338.
It is an arithmetic number, because the mean of its divisors is an integer number (317520).
Almost surely, 213220130 is an apocalyptic number.
13220130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 13220130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20321280).
13220130 is an abundant number, since it is smaller than the sum of its proper divisors (27422430).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13220130 is a wasteful number, since it uses less digits than its factorization.
13220130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 184.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 13220130 is about 3635.9496696187. The cubic root of 13220130 is about 236.4532250940.
Adding to 13220130 its reverse (3102231), we get a palindrome (16322361).
It can be divided in two parts, 132201 and 30, that added together give a palindrome (132231).
The spelling of 13220130 in words is "thirteen million, two hundred twenty thousand, one hundred thirty".
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