Base | Representation |
---|---|
bin | 1011000001110010010001 |
3 | 12102212120021 |
4 | 23001302101 |
5 | 1220002042 |
6 | 141543441 |
7 | 33400162 |
oct | 13016221 |
9 | 5385507 |
10 | 2890897 |
11 | 16a4a79 |
12 | b74b81 |
13 | 7a2ab9 |
14 | 553769 |
15 | 3c1867 |
hex | 2c1c91 |
2890897 has 2 divisors, whose sum is σ = 2890898. Its totient is φ = 2890896.
The previous prime is 2890889. The next prime is 2890913. The reversal of 2890897 is 7980982.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1971216 + 919681 = 1404^2 + 959^2 .
It is a cyclic number.
It is not a de Polignac number, because 2890897 - 23 = 2890889 is a prime.
It is a super-3 number, since 3×28908973 = 72480154433345292819, which contains 333 as substring.
It is not a weakly prime, because it can be changed into another prime (2890397) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445448 + 1445449.
It is an arithmetic number, because the mean of its divisors is an integer number (1445449).
22890897 is an apocalyptic number.
It is an amenable number.
2890897 is a deficient number, since it is larger than the sum of its proper divisors (1).
2890897 is an equidigital number, since it uses as much as digits as its factorization.
2890897 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 72576, while the sum is 43.
The square root of 2890897 is about 1700.2638030612. The cubic root of 2890897 is about 142.4549483109.
The spelling of 2890897 in words is "two million, eight hundred ninety thousand, eight hundred ninety-seven".
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