Base | Representation |
---|---|
bin | 110010000011… |
… | …111000111010 |
3 | 220200201112212 |
4 | 302003320322 |
5 | 11324420010 |
6 | 1145135122 |
7 | 216354566 |
oct | 62037072 |
9 | 26621485 |
10 | 13123130 |
11 | 7453669 |
12 | 448a4a2 |
13 | 2946287 |
14 | 1a586a6 |
15 | 1243505 |
hex | c83e3a |
13123130 has 32 divisors (see below), whose sum is σ = 24300864. Its totient is φ = 5101056.
The previous prime is 13123111. The next prime is 13123147. The reversal of 13123130 is 3132131.
13123130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80429 + ... + 80591.
It is an arithmetic number, because the mean of its divisors is an integer number (759402).
Almost surely, 213123130 is an apocalyptic number.
13123130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13123130 is a deficient number, since it is larger than the sum of its proper divisors (11177734).
13123130 is a wasteful number, since it uses less digits than its factorization.
13123130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 350.
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 13123130 is about 3622.5860928348. The cubic root of 13123130 is about 235.8734958326.
Adding to 13123130 its reverse (3132131), we get a palindrome (16255261).
Subtracting from 13123130 its reverse (3132131), we obtain a palindrome (9990999).
The spelling of 13123130 in words is "thirteen million, one hundred twenty-three thousand, one hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •