Base | Representation |
---|---|
bin | 101101110011… |
… | …110111001011 |
3 | 211121010010100 |
4 | 231303313023 |
5 | 11033241112 |
6 | 1105220443 |
7 | 204034251 |
oct | 55636713 |
9 | 24533110 |
10 | 12008907 |
11 | 6862519 |
12 | 4031723 |
13 | 2646081 |
14 | 18485d1 |
15 | 10c32dc |
hex | b73dcb |
12008907 has 12 divisors (see below), whose sum is σ = 17376840. Its totient is φ = 7991808.
The previous prime is 12008903. The next prime is 12008917. The reversal of 12008907 is 70980021.
It is not a de Polignac number, because 12008907 - 22 = 12008903 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12008903) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7819 + ... + 9227.
It is an arithmetic number, because the mean of its divisors is an integer number (1448070).
Almost surely, 212008907 is an apocalyptic number.
12008907 is a deficient number, since it is larger than the sum of its proper divisors (5367933).
12008907 is a wasteful number, since it uses less digits than its factorization.
12008907 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2362 (or 2359 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 27.
The square root of 12008907 is about 3465.3869913763. The cubic root of 12008907 is about 228.9994787781. Note that the first 3 decimals are identical.
Adding to 12008907 its reverse (70980021), we get a palindrome (82988928).
The spelling of 12008907 in words is "twelve million, eight thousand, nine hundred seven".
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