Base | Representation |
---|---|
bin | 111110101001010… |
… | …0101000001001110 |
3 | 12102111022210101220 |
4 | 1331102211001032 |
5 | 13301104202342 |
6 | 544325344210 |
7 | 103042615446 |
oct | 17522450116 |
9 | 5374283356 |
10 | 2102022222 |
11 | 98959a453 |
12 | 4a7b68066 |
13 | 276648441 |
14 | 15d255126 |
15 | c48165ec |
hex | 7d4a504e |
2102022222 has 32 divisors (see below), whose sum is σ = 4517793792. Its totient is φ = 649613184.
The previous prime is 2102022211. The next prime is 2102022229. The reversal of 2102022222 is 2222202012.
It is a super-3 number, since 3×21020222223 (a number of 29 digits) contains 333 as substring.
2102022222 is a modest number, since divided by 22222 gives 21020 as remainder.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2102022229) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146958 + ... + 160625.
It is an arithmetic number, because the mean of its divisors is an integer number (141181056).
Almost surely, 22102022222 is an apocalyptic number.
2102022222 is an abundant number, since it is smaller than the sum of its proper divisors (2415771570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2102022222 is a wasteful number, since it uses less digits than its factorization.
2102022222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 307672.
The product of its (nonzero) digits is 128, while the sum is 15.
The square root of 2102022222 is about 45847.8158912723. The cubic root of 2102022222 is about 1280.9900831732.
Adding to 2102022222 its reverse (2222202012), we get a palindrome (4324224234).
The spelling of 2102022222 in words is "two billion, one hundred two million, twenty-two thousand, two hundred twenty-two".
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