Base | Representation |
---|---|
bin | 11010011111011… |
… | …11111010100110 |
3 | 120111011120022100 |
4 | 31033233322212 |
5 | 423342412410 |
6 | 34015112530 |
7 | 5335641243 |
oct | 1517577246 |
9 | 514146270 |
10 | 222232230 |
11 | 104498400 |
12 | 62512746 |
13 | 3706c77c |
14 | 2172c5ca |
15 | 1479b8c0 |
hex | d3efea6 |
222232230 has 72 divisors (see below), whose sum is σ = 635137776. Its totient is φ = 53871840.
The previous prime is 222232229. The next prime is 222232243. The reversal of 222232230 is 32232222.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 687 + ... + 21093.
It is an arithmetic number, because the mean of its divisors is an integer number (8821358).
Almost surely, 2222232230 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 222232230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317568888).
222232230 is an abundant number, since it is smaller than the sum of its proper divisors (412905546).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
222232230 is a wasteful number, since it uses less digits than its factorization.
222232230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20442 (or 20428 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 18.
The square root of 222232230 is about 14907.4555172907. The cubic root of 222232230 is about 605.7159568104.
Adding to 222232230 its reverse (32232222), we get a palindrome (254464452).
The spelling of 222232230 in words is "two hundred twenty-two million, two hundred thirty-two thousand, two hundred thirty".
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