Base | Representation |
---|---|
bin | 1011000001100100010001 |
3 | 12102211100002 |
4 | 23001210101 |
5 | 1214440001 |
6 | 141535345 |
7 | 33364442 |
oct | 13014421 |
9 | 5384302 |
10 | 2890001 |
11 | 16a4334 |
12 | b74555 |
13 | 7a257a |
14 | 5532c9 |
15 | 3c146b |
hex | 2c1911 |
2890001 has 2 divisors, whose sum is σ = 2890002. Its totient is φ = 2890000.
The previous prime is 2889979. The next prime is 2890003. The reversal of 2890001 is 1000982.
It is a Cunningham number, because it is equal to 17002+1.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2890000 + 1 = 1700^2 + 1^2 .
It is a cyclic number.
It is not a de Polignac number, because 2890001 - 218 = 2627857 is a prime.
Together with 2890003, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (2890003) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445000 + 1445001.
It is an arithmetic number, because the mean of its divisors is an integer number (1445001).
22890001 is an apocalyptic number.
It is an amenable number.
2890001 is a deficient number, since it is larger than the sum of its proper divisors (1).
2890001 is an equidigital number, since it uses as much as digits as its factorization.
2890001 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 144, while the sum is 20.
The square root of 2890001 is about 1700.0002941176. Note that the first 3 decimals coincide. The cubic root of 2890001 is about 142.4402293704.
Adding to 2890001 its reverse (1000982), we get a palindrome (3890983).
The spelling of 2890001 in words is "two million, eight hundred ninety thousand, one".
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