Base | Representation |
---|---|
bin | 100100101010101… |
… | …0101100101101110 |
3 | 10011202002020210000 |
4 | 1021111111211232 |
5 | 10004431031342 |
6 | 322030125130 |
7 | 42326430402 |
oct | 11125254556 |
9 | 3152066700 |
10 | 1230330222 |
11 | 581542340 |
12 | 2a40507a6 |
13 | 167b83864 |
14 | b9587102 |
15 | 7302c44c |
hex | 4955596e |
1230330222 has 120 divisors (see below), whose sum is σ = 3196127880. Its totient is φ = 350749440.
The previous prime is 1230330151. The next prime is 1230330223. The reversal of 1230330222 is 2220330321.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 1230330195 and 1230330204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230330223) by changing a digit.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 513804 + ... + 516192.
It is an arithmetic number, because the mean of its divisors is an integer number (26634399).
Almost surely, 21230330222 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1230330222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598063940).
1230330222 is an abundant number, since it is smaller than the sum of its proper divisors (1965797658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230330222 is a wasteful number, since it uses less digits than its factorization.
1230330222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2448 (or 2422 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
The square root of 1230330222 is about 35076.0633766106. The cubic root of 1230330222 is about 1071.5371455229.
Adding to 1230330222 its reverse (2220330321), we get a palindrome (3450660543).
Subtracting 1230330222 from its reverse (2220330321), we obtain a palindrome (990000099).
The spelling of 1230330222 in words is "one billion, two hundred thirty million, three hundred thirty thousand, two hundred twenty-two".
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