Base | Representation |
---|---|
bin | 110001111110… |
… | …100010011100 |
3 | 220122121111002 |
4 | 301332202130 |
5 | 11323214322 |
6 | 1144445432 |
7 | 216233645 |
oct | 61764234 |
9 | 26577432 |
10 | 13101212 |
11 | 7439153 |
12 | 4479878 |
13 | 29392c7 |
14 | 1a506cc |
15 | 123bc92 |
hex | c7e89c |
13101212 has 12 divisors (see below), whose sum is σ = 22997520. Its totient is φ = 6530496.
The previous prime is 13101211. The next prime is 13101223. The reversal of 13101212 is 21210131.
It is a junction number, because it is equal to n+sod(n) for n = 13101193 and 13101202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13101211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3512 + ... + 6207.
It is an arithmetic number, because the mean of its divisors is an integer number (1916460).
Almost surely, 213101212 is an apocalyptic number.
It is an amenable number.
13101212 is a deficient number, since it is larger than the sum of its proper divisors (9896308).
13101212 is a wasteful number, since it uses less digits than its factorization.
13101212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10060 (or 10058 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 11.
The square root of 13101212 is about 3619.5596417244. The cubic root of 13101212 is about 235.7421055275.
Adding to 13101212 its reverse (21210131), we get a palindrome (34311343).
The spelling of 13101212 in words is "thirteen million, one hundred one thousand, two hundred twelve".
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