| Base | Representation |
|---|---|
| bin | 1000010001110101… |
| … | …0100011011001000 |
| 3 | 12201212121102210100 |
| 4 | 2010131110123020 |
| 5 | 14022400401334 |
| 6 | 1004303045400 |
| 7 | 106033024416 |
| oct | 20435243310 |
| 9 | 5655542710 |
| 10 | 2222278344 |
| 11 | a40466680 |
| 12 | 5202a0860 |
| 13 | 295531b00 |
| 14 | 1711da2b6 |
| 15 | d016cc99 |
| hex | 847546c8 |
2222278344 has 144 divisors (see below), whose sum is σ = 7110164880. Its totient is φ = 621578880.
The previous prime is 2222278343. The next prime is 2222278427. The reversal of 2222278344 is 4438722222.
2222278344 is a `hidden beast` number, since 22 + 22 + 278 + 344 = 666.
It is a super-2 number, since 2×22222783442 = 9877042076422764672, which contains 22 as substring.
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 = 2222278299 and 2222278308.
It is not an unprimeable number, because it can be changed into a prime (2222278343) 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 35 ways as a sum of consecutive naturals, for example, 125547 + ... + 142149.
It is an arithmetic number, because the mean of its divisors is an integer number (49376145).
Almost surely, 22222278344 is an apocalyptic number.
2222278344 is a gapful number since it is divisible by the number (24) 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 2222278344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3555082440).
2222278344 is an abundant number, since it is smaller than the sum of its proper divisors (4887886536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2222278344 is a wasteful number, since it uses less digits than its factorization.
2222278344 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16652 (or 16632 counting only the distinct ones).
The product of its digits is 86016, while the sum is 36.
The square root of 2222278344 is about 47141.0473366895. The cubic root of 2222278344 is about 1304.9668657637.
The spelling of 2222278344 in words is "two billion, two hundred twenty-two million, two hundred seventy-eight thousand, three hundred forty-four".
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