Base | Representation |
---|---|
bin | 110111000100… |
… | …0000111101110 |
3 | 2000022200222000 |
4 | 1232020013232 |
5 | 24342302402 |
6 | 2510433130 |
7 | 500245323 |
oct | 156100756 |
9 | 60280860 |
10 | 28869102 |
11 | 15328869 |
12 | 98027a6 |
13 | 5c9a312 |
14 | 3b96b4a |
15 | 2803c1c |
hex | 1b881ee |
28869102 has 32 divisors (see below), whose sum is σ = 65892000. Its totient is φ = 9362304.
The previous prime is 28869101. The next prime is 28869103. The reversal of 28869102 is 20196882.
It is an interprime number because it is at equal distance from previous prime (28869101) and next prime (28869103).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28869101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5227 + ... + 9222.
It is an arithmetic number, because the mean of its divisors is an integer number (2059125).
Almost surely, 228869102 is an apocalyptic number.
28869102 is an abundant number, since it is smaller than the sum of its proper divisors (37022898).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28869102 is a wasteful number, since it uses less digits than its factorization.
28869102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14497 (or 14491 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 36.
The square root of 28869102 is about 5372.9974874366. The cubic root of 28869102 is about 306.7687323046.
The spelling of 28869102 in words is "twenty-eight million, eight hundred sixty-nine thousand, one hundred two".
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