Base | Representation |
---|---|
bin | 11010101000101… |
… | …00010101110101 |
3 | 120120102102100101 |
4 | 31110110111311 |
5 | 424144230010 |
6 | 34100514101 |
7 | 5352060301 |
oct | 1524242565 |
9 | 516372311 |
10 | 223430005 |
11 | 1051362a7 |
12 | 629ab931 |
13 | 3739ba06 |
14 | 21960d01 |
15 | 1493673a |
hex | d514575 |
223430005 has 8 divisors (see below), whose sum is σ = 271789272. Its totient is φ = 176295168.
The previous prime is 223430003. The next prime is 223430047. The reversal of 223430005 is 500034322.
223430005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 47089 + 223382916 = 217^2 + 14946^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 223430005 - 21 = 223430003 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 (223430003) 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, 305704 + ... + 306433.
It is an arithmetic number, because the mean of its divisors is an integer number (33973659).
Almost surely, 2223430005 is an apocalyptic number.
It is an amenable number.
223430005 is a deficient number, since it is larger than the sum of its proper divisors (48359267).
223430005 is an equidigital number, since it uses as much as digits as its factorization.
223430005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 612215.
The product of its (nonzero) digits is 720, while the sum is 19.
The square root of 223430005 is about 14947.5752214197. The cubic root of 223430005 is about 606.8022257082.
Adding to 223430005 its reverse (500034322), we get a palindrome (723464327).
The spelling of 223430005 in words is "two hundred twenty-three million, four hundred thirty thousand, five".
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