Base | Representation |
---|---|
bin | 11010100001000… |
… | …00011100001001 |
3 | 120111112122221122 |
4 | 31100200130021 |
5 | 423420242420 |
6 | 34023245025 |
7 | 5340426560 |
oct | 1520403411 |
9 | 514478848 |
10 | 222430985 |
11 | 104613767 |
12 | 625a9775 |
13 | 3710c08a |
14 | 21780bd7 |
15 | 147da725 |
hex | d420709 |
222430985 has 8 divisors (see below), whose sum is σ = 305048256. Its totient is φ = 152524080.
The previous prime is 222430979. The next prime is 222431029. The reversal of 222430985 is 589034222.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 222430985 - 218 = 222168841 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 6355171 = 222430985 / (2 + 2 + 2 + 4 + 3 + 0 + 9 + 8 + 5).
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3177551 + ... + 3177620.
It is an arithmetic number, because the mean of its divisors is an integer number (38131032).
Almost surely, 2222430985 is an apocalyptic number.
It is an amenable number.
222430985 is a deficient number, since it is larger than the sum of its proper divisors (82617271).
222430985 is an equidigital number, since it uses as much as digits as its factorization.
222430985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6355183.
The product of its (nonzero) digits is 34560, while the sum is 35.
The square root of 222430985 is about 14914.1203227009. The cubic root of 222430985 is about 605.8964784844.
The spelling of 222430985 in words is "two hundred twenty-two million, four hundred thirty thousand, nine hundred eighty-five".
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