Base | Representation |
---|---|
bin | 110111000100… |
… | …0000111101111 |
3 | 2000022200222001 |
4 | 1232020013233 |
5 | 24342302403 |
6 | 2510433131 |
7 | 500245324 |
oct | 156100757 |
9 | 60280861 |
10 | 28869103 |
11 | 1532886a |
12 | 98027a7 |
13 | 5c9a313 |
14 | 3b96b4b |
15 | 2803c1d |
hex | 1b881ef |
28869103 has 2 divisors, whose sum is σ = 28869104. Its totient is φ = 28869102.
The previous prime is 28869101. The next prime is 28869107. The reversal of 28869103 is 30196882.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 28869103 - 21 = 28869101 is a prime.
Together with 28869101, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28869101) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14434551 + 14434552.
It is an arithmetic number, because the mean of its divisors is an integer number (14434552).
Almost surely, 228869103 is an apocalyptic number.
28869103 is a deficient number, since it is larger than the sum of its proper divisors (1).
28869103 is an equidigital number, since it uses as much as digits as its factorization.
28869103 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 20736, while the sum is 37.
The square root of 28869103 is about 5372.9975804945. The cubic root of 28869103 is about 306.7687358466.
The spelling of 28869103 in words is "twenty-eight million, eight hundred sixty-nine thousand, one hundred three".
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