Base | Representation |
---|---|
bin | 110110010101… |
… | …0010111001111 |
3 | 1222121012011122 |
4 | 1230222113033 |
5 | 24243010241 |
6 | 2454311155 |
7 | 464055566 |
oct | 154522717 |
9 | 58535148 |
10 | 28485071 |
11 | 1509628a |
12 | 96584bb |
13 | 5b94594 |
14 | 3ad6bdd |
15 | 277a04b |
hex | 1b2a5cf |
28485071 has 2 divisors, whose sum is σ = 28485072. Its totient is φ = 28485070.
The previous prime is 28485053. The next prime is 28485089. The reversal of 28485071 is 17058482.
It is a balanced prime because it is at equal distance from previous prime (28485053) and next prime (28485089).
It is a cyclic number.
It is not a de Polignac number, because 28485071 - 26 = 28485007 is a prime.
It is a super-2 number, since 2×284850712 = 1622798539750082, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28485571) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14242535 + 14242536.
It is an arithmetic number, because the mean of its divisors is an integer number (14242536).
Almost surely, 228485071 is an apocalyptic number.
28485071 is a deficient number, since it is larger than the sum of its proper divisors (1).
28485071 is an equidigital number, since it uses as much as digits as its factorization.
28485071 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 17920, while the sum is 35.
The square root of 28485071 is about 5337.1407139029. The cubic root of 28485071 is about 305.4023928265.
The spelling of 28485071 in words is "twenty-eight million, four hundred eighty-five thousand, seventy-one".
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