Base | Representation |
---|---|
bin | 101101110100… |
… | …011001100011 |
3 | 211121020010211 |
4 | 231310121203 |
5 | 11033323412 |
6 | 1105234551 |
7 | 204043543 |
oct | 55643143 |
9 | 24536124 |
10 | 12011107 |
11 | 6864139 |
12 | 4032a57 |
13 | 2647084 |
14 | 1849323 |
15 | 10c3ca7 |
hex | b74663 |
12011107 has 4 divisors (see below), whose sum is σ = 12024496. Its totient is φ = 11997720.
The previous prime is 12011099. The next prime is 12011113. The reversal of 12011107 is 70111021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70111021 = 61 ⋅1149361.
It is a cyclic number.
It is not a de Polignac number, because 12011107 - 23 = 12011099 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12011117) 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, 5244 + ... + 7177.
It is an arithmetic number, because the mean of its divisors is an integer number (3006124).
Almost surely, 212011107 is an apocalyptic number.
12011107 is a deficient number, since it is larger than the sum of its proper divisors (13389).
12011107 is an equidigital number, since it uses as much as digits as its factorization.
12011107 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13388.
The product of its (nonzero) digits is 14, while the sum is 13.
The square root of 12011107 is about 3465.7044017054. The cubic root of 12011107 is about 229.0134619572.
Adding to 12011107 its reverse (70111021), we get a palindrome (82122128).
The spelling of 12011107 in words is "twelve million, eleven thousand, one hundred seven".
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