Base | Representation |
---|---|
bin | 11010011111010… |
… | …10110010011110 |
3 | 120111010111111120 |
4 | 31033222302132 |
5 | 423341224410 |
6 | 34014431410 |
7 | 5335523103 |
oct | 1517526236 |
9 | 514114446 |
10 | 222211230 |
11 | 10448364a |
12 | 62502566 |
13 | 37063047 |
14 | 21724aaa |
15 | 14795570 |
hex | d3eac9e |
222211230 has 16 divisors (see below), whose sum is σ = 533307024. Its totient is φ = 59256320.
The previous prime is 222211201. The next prime is 222211247. The reversal of 222211230 is 32112222.
It is a happy number.
It is a super-2 number, since 2×2222112302 = 98755661476225800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 3703491 + ... + 3703550.
It is an arithmetic number, because the mean of its divisors is an integer number (33331689).
Almost surely, 2222211230 is an apocalyptic number.
222211230 is an abundant number, since it is smaller than the sum of its proper divisors (311095794).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
222211230 is a wasteful number, since it uses less digits than its factorization.
222211230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7407051.
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 222211230 is about 14906.7511550975. The cubic root of 222211230 is about 605.6968770160.
Adding to 222211230 its reverse (32112222), we get a palindrome (254323452).
The spelling of 222211230 in words is "two hundred twenty-two million, two hundred eleven thousand, two hundred thirty".
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