Base | Representation |
---|---|
bin | 11010100011111… |
… | …00011111111001 |
3 | 120112020211012021 |
4 | 31101330133321 |
5 | 424014324212 |
6 | 34035314441 |
7 | 5343560113 |
oct | 1521743771 |
9 | 515224167 |
10 | 222808057 |
11 | 104850a9a |
12 | 6274ba21 |
13 | 372118b4 |
14 | 2183c3b3 |
15 | 14862307 |
hex | d47c7f9 |
222808057 has 2 divisors, whose sum is σ = 222808058. Its totient is φ = 222808056.
The previous prime is 222808039. The next prime is 222808087. The reversal of 222808057 is 750808222.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 139925241 + 82882816 = 11829^2 + 9104^2 .
It is a cyclic number.
It is not a de Polignac number, because 222808057 - 211 = 222806009 is a prime.
It is not a weakly prime, because it can be changed into another prime (222808007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111404028 + 111404029.
It is an arithmetic number, because the mean of its divisors is an integer number (111404029).
Almost surely, 2222808057 is an apocalyptic number.
It is an amenable number.
222808057 is a deficient number, since it is larger than the sum of its proper divisors (1).
222808057 is an equidigital number, since it uses as much as digits as its factorization.
222808057 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 17920, while the sum is 34.
The square root of 222808057 is about 14926.7564125633. The cubic root of 222808057 is about 606.2386634505.
The spelling of 222808057 in words is "two hundred twenty-two million, eight hundred eight thousand, fifty-seven".
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