Base | Representation |
---|---|
bin | 1000010010000101… |
… | …0101101011110001 |
3 | 12201221120222020122 |
4 | 2010201111223301 |
5 | 14023133111311 |
6 | 1004341420025 |
7 | 106045003505 |
oct | 20441255361 |
9 | 5657528218 |
10 | 2223332081 |
11 | a41016333 |
12 | 52070a615 |
13 | 295810619 |
14 | 1713d2305 |
15 | d02ca0db |
hex | 84855af1 |
2223332081 has 2 divisors, whose sum is σ = 2223332082. Its totient is φ = 2223332080.
The previous prime is 2223332057. The next prime is 2223332117. The reversal of 2223332081 is 1802333222.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2115172081 + 108160000 = 45991^2 + 10400^2 .
It is a cyclic number.
It is not a de Polignac number, because 2223332081 - 26 = 2223332017 is a prime.
It is a super-2 number, since 2×22233320812 = 9886411084807581122, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 2223332081.
It is not a weakly prime, because it can be changed into another prime (2223332281) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111666040 + 1111666041.
It is an arithmetic number, because the mean of its divisors is an integer number (1111666041).
Almost surely, 22223332081 is an apocalyptic number.
It is an amenable number.
2223332081 is a deficient number, since it is larger than the sum of its proper divisors (1).
2223332081 is an equidigital number, since it uses as much as digits as its factorization.
2223332081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3456, while the sum is 26.
The square root of 2223332081 is about 47152.2224396687. Note that the first 3 decimals coincide. The cubic root of 2223332081 is about 1305.1730917433.
The spelling of 2223332081 in words is "two billion, two hundred twenty-three million, three hundred thirty-two thousand, eighty-one".
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