Base | Representation |
---|---|
bin | 110010011110… |
… | …010100101001 |
3 | 220220020001220 |
4 | 302132110221 |
5 | 11341401101 |
6 | 1151332253 |
7 | 220315341 |
oct | 62362451 |
9 | 26806056 |
10 | 13231401 |
11 | 7517a47 |
12 | 4521089 |
13 | 2983641 |
14 | 1a85d21 |
15 | 1265636 |
hex | c9e529 |
13231401 has 16 divisors (see below), whose sum is σ = 18237120. Its totient is φ = 8527680.
The previous prime is 13231373. The next prime is 13231411. The reversal of 13231401 is 10413231.
13231401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 13231401 - 25 = 13231369 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (13231411) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13591 + ... + 14531.
It is an arithmetic number, because the mean of its divisors is an integer number (1139820).
Almost surely, 213231401 is an apocalyptic number.
It is an amenable number.
13231401 is a deficient number, since it is larger than the sum of its proper divisors (5005719).
13231401 is a wasteful number, since it uses less digits than its factorization.
13231401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1096.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 13231401 is about 3637.4992783504. The cubic root of 13231401 is about 236.5204031344.
Adding to 13231401 its reverse (10413231), we get a palindrome (23644632).
The spelling of 13231401 in words is "thirteen million, two hundred thirty-one thousand, four hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.092 sec. • engine limits •