Base | Representation |
---|---|
bin | 101110001100… |
… | …110101101000 |
3 | 211210022110021 |
4 | 232030311220 |
5 | 11100024313 |
6 | 1111330224 |
7 | 204641434 |
oct | 56146550 |
9 | 24708407 |
10 | 12111208 |
11 | 692236a |
12 | 4080974 |
13 | 26807c5 |
14 | 18739c4 |
15 | 10e378d |
hex | b8cd68 |
12111208 has 64 divisors (see below), whose sum is σ = 26136000. Its totient is φ = 5225472.
The previous prime is 12111199. The next prime is 12111217. The reversal of 12111208 is 80211121.
12111208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (12111199) and next prime (12111217).
It is a junction number, because it is equal to n+sod(n) for n = 12111191 and 12111200.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111058 + ... + 111166.
It is an arithmetic number, because the mean of its divisors is an integer number (408375).
Almost surely, 212111208 is an apocalyptic number.
It is an amenable number.
12111208 is an abundant number, since it is smaller than the sum of its proper divisors (14024792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12111208 is a wasteful number, since it uses less digits than its factorization.
12111208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 194 (or 190 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 16.
The square root of 12111208 is about 3480.1160900177. The cubic root of 12111208 is about 229.6479048751.
Adding to 12111208 its reverse (80211121), we get a palindrome (92322329).
It can be divided in two parts, 1 and 2111208, that added together give a square (2111209 = 14532).
The spelling of 12111208 in words is "twelve million, one hundred eleven thousand, two hundred eight".
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