Base | Representation |
---|---|
bin | 110001101001… |
… | …001000001000 |
3 | 220111011011221 |
4 | 301221020020 |
5 | 11312413022 |
6 | 1142531424 |
7 | 215420161 |
oct | 61511010 |
9 | 26434157 |
10 | 13013512 |
11 | 7389276 |
12 | 4436b74 |
13 | 2908405 |
14 | 1a2a768 |
15 | 1220cc7 |
hex | c69208 |
13013512 has 32 divisors (see below), whose sum is σ = 25200000. Its totient is φ = 6297408.
The previous prime is 13013509. The next prime is 13013513. The reversal of 13013512 is 21531031.
It is not an unprimeable number, because it can be changed into a prime (13013513) 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, 37114 + ... + 37462.
It is an arithmetic number, because the mean of its divisors is an integer number (787500).
Almost surely, 213013512 is an apocalyptic number.
It is an amenable number.
13013512 is a deficient number, since it is larger than the sum of its proper divisors (12186488).
13013512 is a wasteful number, since it uses less digits than its factorization.
13013512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 493 (or 489 counting only the distinct ones).
The product of its (nonzero) digits is 90, while the sum is 16.
The square root of 13013512 is about 3607.4245660859. The cubic root of 13013512 is about 235.2149052673.
Adding to 13013512 its reverse (21531031), we get a palindrome (34544543).
The spelling of 13013512 in words is "thirteen million, thirteen thousand, five hundred twelve".
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