Base | Representation |
---|---|
bin | 110001101001… |
… | …100010100001 |
3 | 220111020111111 |
4 | 301221202201 |
5 | 11312441301 |
6 | 1142543321 |
7 | 215425123 |
oct | 61514241 |
9 | 26436444 |
10 | 13015201 |
11 | 738a571 |
12 | 4437b41 |
13 | 2909104 |
14 | 1a2b213 |
15 | 1221551 |
hex | c698a1 |
13015201 has 4 divisors (see below), whose sum is σ = 13024900. Its totient is φ = 13005504.
The previous prime is 13015187. The next prime is 13015213. The reversal of 13015201 is 10251031.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in 2 ways, for example, as 6250000 + 6765201 = 2500^2 + 2601^2 .
It is a cyclic number.
It is not a de Polignac number, because 13015201 - 27 = 13015073 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13015241) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2436 + ... + 5653.
It is an arithmetic number, because the mean of its divisors is an integer number (3256225).
Almost surely, 213015201 is an apocalyptic number.
It is an amenable number.
13015201 is a deficient number, since it is larger than the sum of its proper divisors (9699).
13015201 is an equidigital number, since it uses as much as digits as its factorization.
13015201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9698.
The product of its (nonzero) digits is 30, while the sum is 13.
The square root of 13015201 is about 3607.6586590197. The cubic root of 13015201 is about 235.2250808650.
Adding to 13015201 its reverse (10251031), we get a palindrome (23266232).
The spelling of 13015201 in words is "thirteen million, fifteen thousand, two hundred one".
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