Base | Representation |
---|---|
bin | 110001100111… |
… | …000110011100 |
3 | 220110201210112 |
4 | 301213012130 |
5 | 11312131322 |
6 | 1142425152 |
7 | 215354033 |
oct | 61470634 |
9 | 26421715 |
10 | 13005212 |
11 | 7383010 |
12 | 44321b8 |
13 | 29046bc |
14 | 1a2771a |
15 | 121d5e2 |
hex | c6719c |
13005212 has 48 divisors (see below), whose sum is σ = 26417664. Its totient is φ = 5544000.
The previous prime is 13005211. The next prime is 13005227. The reversal of 13005212 is 21250031.
It is a happy number.
13005212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13005211) 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, 71762 + ... + 71942.
It is an arithmetic number, because the mean of its divisors is an integer number (550368).
Almost surely, 213005212 is an apocalyptic number.
It is an amenable number.
13005212 is an abundant number, since it is smaller than the sum of its proper divisors (13412452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13005212 is a wasteful number, since it uses less digits than its factorization.
13005212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 290 (or 288 counting only the distinct ones).
The product of its (nonzero) digits is 60, while the sum is 14.
The square root of 13005212 is about 3606.2739773900. The cubic root of 13005212 is about 235.1648880515.
Adding to 13005212 its reverse (21250031), we get a palindrome (34255243).
The spelling of 13005212 in words is "thirteen million, five thousand, two hundred twelve".
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