Base | Representation |
---|---|
bin | 101101110111… |
… | …110011010101 |
3 | 211121221021001 |
4 | 231313303111 |
5 | 11034300140 |
6 | 1105423301 |
7 | 204132304 |
oct | 55676325 |
9 | 24557231 |
10 | 12025045 |
11 | 687365a |
12 | 403ab31 |
13 | 2650516 |
14 | 185043b |
15 | 10c7e9a |
hex | b77cd5 |
12025045 has 8 divisors (see below), whose sum is σ = 14527800. Its totient is φ = 9554880.
The previous prime is 12025033. The next prime is 12025049. The reversal of 12025045 is 54052021.
It can be written as a sum of positive squares in 4 ways, for example, as 39601 + 11985444 = 199^2 + 3462^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12025045 - 221 = 9927893 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12025049) 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, 7326 + ... + 8815.
It is an arithmetic number, because the mean of its divisors is an integer number (1815975).
Almost surely, 212025045 is an apocalyptic number.
It is an amenable number.
12025045 is a deficient number, since it is larger than the sum of its proper divisors (2502755).
12025045 is a wasteful number, since it uses less digits than its factorization.
12025045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16295.
The product of its (nonzero) digits is 400, while the sum is 19.
The square root of 12025045 is about 3467.7146653091. The cubic root of 12025045 is about 229.1020121005.
Adding to 12025045 its reverse (54052021), we get a palindrome (66077066).
It can be divided in two parts, 120250 and 45, that added together give a triangular number (120295 = T490).
The spelling of 12025045 in words is "twelve million, twenty-five thousand, forty-five".
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