Base | Representation |
---|---|
bin | 101110110001… |
… | …010101100001 |
3 | 212001220112012 |
4 | 232301111201 |
5 | 11114320310 |
6 | 1114442305 |
7 | 206133332 |
oct | 56612541 |
9 | 25056465 |
10 | 12260705 |
11 | 6a14716 |
12 | 4133395 |
13 | 2703872 |
14 | 18b2289 |
15 | 1122c05 |
hex | bb1561 |
12260705 has 4 divisors (see below), whose sum is σ = 14712852. Its totient is φ = 9808560.
The previous prime is 12260701. The next prime is 12260713. The reversal of 12260705 is 50706221.
12260705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50706221 = 331 ⋅153191.
It can be written as a sum of positive squares in 2 ways, for example, as 9461776 + 2798929 = 3076^2 + 1673^2 .
It is not a de Polignac number, because 12260705 - 22 = 12260701 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12260701) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226066 + ... + 1226075.
It is an arithmetic number, because the mean of its divisors is an integer number (3678213).
Almost surely, 212260705 is an apocalyptic number.
It is an amenable number.
12260705 is a deficient number, since it is larger than the sum of its proper divisors (2452147).
12260705 is an equidigital number, since it uses as much as digits as its factorization.
12260705 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2452146.
The product of its (nonzero) digits is 840, while the sum is 23.
The square root of 12260705 is about 3501.5289517581. The cubic root of 12260705 is about 230.5889443319.
Adding to 12260705 its reverse (50706221), we get a palindrome (62966926).
The spelling of 12260705 in words is "twelve million, two hundred sixty thousand, seven hundred five".
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