| Base | Representation |
|---|---|
| bin | 11101000010101… |
| … | …01000110110100 |
| 3 | 121222102002101100 |
| 4 | 32201111012310 |
| 5 | 444331240403 |
| 6 | 40101330100 |
| 7 | 6015502140 |
| oct | 1641250664 |
| 9 | 558362340 |
| 10 | 243618228 |
| 11 | 115574a87 |
| 12 | 69706930 |
| 13 | 3b6199c9 |
| 14 | 244d8220 |
| 15 | 165c32a3 |
| hex | e8551b4 |
243618228 has 288 divisors, whose sum is σ = 814544640. Its totient is φ = 59719680.
The previous prime is 243618227. The next prime is 243618233. The reversal of 243618228 is 822816342.
243618228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 243618192 and 243618201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (243618223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3337200 + ... + 3337272.
It is an arithmetic number, because the mean of its divisors is an integer number (2828280).
Almost surely, 2243618228 is an apocalyptic number.
243618228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 243618228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407272320).
243618228 is an abundant number, since it is smaller than the sum of its proper divisors (570926412).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
243618228 is a wasteful number, since it uses less digits than its factorization.
243618228 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 167 (or 162 counting only the distinct ones).
The product of its digits is 36864, while the sum is 36.
The square root of 243618228 is about 15608.2743440779. The cubic root of 243618228 is about 624.5539028982.
The spelling of 243618228 in words is "two hundred forty-three million, six hundred eighteen thousand, two hundred twenty-eight".
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