Base | Representation |
---|---|
bin | 101111111000… |
… | …111111100101 |
3 | 212121211010212 |
4 | 233320333211 |
5 | 11203213323 |
6 | 1125025205 |
7 | 211465130 |
oct | 57707745 |
9 | 25554125 |
10 | 12554213 |
11 | 70a5191 |
12 | 4255205 |
13 | 27a7339 |
14 | 194b217 |
15 | 117eb78 |
hex | bf8fe5 |
12554213 has 4 divisors (see below), whose sum is σ = 14347680. Its totient is φ = 10760748.
The previous prime is 12554207. The next prime is 12554221. The reversal of 12554213 is 31245521.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12554213 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12554233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896723 + ... + 896736.
It is an arithmetic number, because the mean of its divisors is an integer number (3586920).
Almost surely, 212554213 is an apocalyptic number.
It is an amenable number.
12554213 is a deficient number, since it is larger than the sum of its proper divisors (1793467).
12554213 is an equidigital number, since it uses as much as digits as its factorization.
12554213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1793466.
The product of its digits is 1200, while the sum is 23.
The square root of 12554213 is about 3543.1924870094. The cubic root of 12554213 is about 232.4144704094.
Adding to 12554213 its reverse (31245521), we get a palindrome (43799734).
The spelling of 12554213 in words is "twelve million, five hundred fifty-four thousand, two hundred thirteen".
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