Base | Representation |
---|---|
bin | 110010011110… |
… | …000000111110 |
3 | 220220011100021 |
4 | 302132000332 |
5 | 11341331032 |
6 | 1151322354 |
7 | 220311562 |
oct | 62360076 |
9 | 26804307 |
10 | 13230142 |
11 | 7517002 |
12 | 45203ba |
13 | 2982bb3 |
14 | 1a856a2 |
15 | 1265097 |
hex | c9e03e |
13230142 has 4 divisors (see below), whose sum is σ = 19845216. Its totient is φ = 6615070.
The previous prime is 13230109. The next prime is 13230169. The reversal of 13230142 is 24103231.
It is a happy number.
13230142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24103231 = 677 ⋅35603.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3307534 + ... + 3307537.
It is an arithmetic number, because the mean of its divisors is an integer number (4961304).
Almost surely, 213230142 is an apocalyptic number.
13230142 is a deficient number, since it is larger than the sum of its proper divisors (6615074).
13230142 is an equidigital number, since it uses as much as digits as its factorization.
13230142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6615073.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 13230142 is about 3637.3262157799. The cubic root of 13230142 is about 236.5129010658.
Adding to 13230142 its reverse (24103231), we get a palindrome (37333373).
The spelling of 13230142 in words is "thirteen million, two hundred thirty thousand, one hundred forty-two".
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