Base | Representation |
---|---|
bin | 110000100111… |
… | …100100111001 |
3 | 212222111212200 |
4 | 300213210321 |
5 | 11230320032 |
6 | 1133100413 |
7 | 213221325 |
oct | 60474471 |
9 | 25874780 |
10 | 12745017 |
11 | 721557a |
12 | 4327709 |
13 | 284313c |
14 | 199a985 |
15 | 11bb47c |
hex | c27939 |
12745017 has 6 divisors (see below), whose sum is σ = 18409482. Its totient is φ = 8496672.
The previous prime is 12745009. The next prime is 12745021. The reversal of 12745017 is 71054721.
12745017 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 11532816 + 1212201 = 3396^2 + 1101^2 .
It is not a de Polignac number, because 12745017 - 23 = 12745009 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12745097) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 708048 + ... + 708065.
It is an arithmetic number, because the mean of its divisors is an integer number (3068247).
Almost surely, 212745017 is an apocalyptic number.
It is an amenable number.
12745017 is a deficient number, since it is larger than the sum of its proper divisors (5664465).
12745017 is a wasteful number, since it uses less digits than its factorization.
12745017 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1416119 (or 1416116 counting only the distinct ones).
The product of its (nonzero) digits is 1960, while the sum is 27.
The square root of 12745017 is about 3570.0163865170. The cubic root of 12745017 is about 233.5859981854.
Adding to 12745017 its reverse (71054721), we get a palindrome (83799738).
The spelling of 12745017 in words is "twelve million, seven hundred forty-five thousand, seventeen".
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