Base | Representation |
---|---|
bin | 110111000111… |
… | …1111010100011 |
3 | 2000101022202102 |
4 | 1232033322203 |
5 | 24344313102 |
6 | 2511241015 |
7 | 500440361 |
oct | 156177243 |
9 | 60338672 |
10 | 28901027 |
11 | 1534a851 |
12 | 981916b |
13 | 5cab9cc |
14 | 3ba4631 |
15 | 280d402 |
hex | 1b8fea3 |
28901027 has 2 divisors, whose sum is σ = 28901028. Its totient is φ = 28901026.
The previous prime is 28901017. The next prime is 28901029. The reversal of 28901027 is 72010982.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 28901027 - 28 = 28900771 is a prime.
Together with 28901029, 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 (28901029) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14450513 + 14450514.
It is an arithmetic number, because the mean of its divisors is an integer number (14450514).
Almost surely, 228901027 is an apocalyptic number.
28901027 is a deficient number, since it is larger than the sum of its proper divisors (1).
28901027 is an equidigital number, since it uses as much as digits as its factorization.
28901027 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2016, while the sum is 29.
The square root of 28901027 is about 5375.9675408246. The cubic root of 28901027 is about 306.8817710810.
The spelling of 28901027 in words is "twenty-eight million, nine hundred one thousand, twenty-seven".
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