Base | Representation |
---|---|
bin | 110001110010… |
… | …101111101001 |
3 | 220120011012221 |
4 | 301302233221 |
5 | 11320143110 |
6 | 1143434041 |
7 | 215643055 |
oct | 61625751 |
9 | 26504187 |
10 | 13052905 |
11 | 7405928 |
12 | 4455921 |
13 | 2920318 |
14 | 1a3ac65 |
15 | 122c7da |
hex | c72be9 |
13052905 has 8 divisors (see below), whose sum is σ = 16488000. Its totient is φ = 9892656.
The previous prime is 13052903. The next prime is 13052909. The reversal of 13052905 is 50925031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13052905 - 21 = 13052903 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 13052905.
It is not an unprimeable number, because it can be changed into a prime (13052903) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68605 + ... + 68794.
It is an arithmetic number, because the mean of its divisors is an integer number (2061000).
Almost surely, 213052905 is an apocalyptic number.
It is an amenable number.
13052905 is a deficient number, since it is larger than the sum of its proper divisors (3435095).
13052905 is a wasteful number, since it uses less digits than its factorization.
13052905 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 137423.
The product of its (nonzero) digits is 1350, while the sum is 25.
The square root of 13052905 is about 3612.8804297956. The cubic root of 13052905 is about 235.4520046499.
Adding to 13052905 its reverse (50925031), we get a palindrome (63977936).
It can be divided in two parts, 130 and 52905, that added together give a palindrome (53035).
The spelling of 13052905 in words is "thirteen million, fifty-two thousand, nine hundred five".
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