Base | Representation |
---|---|
bin | 110101111100… |
… | …1000100010111 |
3 | 1222012221012102 |
4 | 1223321010113 |
5 | 24220030114 |
6 | 2450112315 |
7 | 462255122 |
oct | 153710427 |
9 | 58187172 |
10 | 28283159 |
11 | 14a68613 |
12 | 957b69b |
13 | 5b236c8 |
14 | 3a833b9 |
15 | 273a2de |
hex | 1af9117 |
28283159 has 2 divisors, whose sum is σ = 28283160. Its totient is φ = 28283158.
The previous prime is 28283147. The next prime is 28283161. The reversal of 28283159 is 95138282.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 28283159 - 224 = 11505943 is a prime.
It is a Sophie Germain prime.
Together with 28283161, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28283119) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14141579 + 14141580.
It is an arithmetic number, because the mean of its divisors is an integer number (14141580).
Almost surely, 228283159 is an apocalyptic number.
28283159 is a deficient number, since it is larger than the sum of its proper divisors (1).
28283159 is an equidigital number, since it uses as much as digits as its factorization.
28283159 is an evil number, because the sum of its binary digits is even.
The product of its digits is 34560, while the sum is 38.
The square root of 28283159 is about 5318.1913278858. The cubic root of 28283159 is about 304.6790819625.
The spelling of 28283159 in words is "twenty-eight million, two hundred eighty-three thousand, one hundred fifty-nine".
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