Base | Representation |
---|---|
bin | 110101110011… |
… | …1011111011000 |
3 | 1222002021102210 |
4 | 1223213133120 |
5 | 24210224120 |
6 | 2444355120 |
7 | 461535165 |
oct | 153473730 |
9 | 58067383 |
10 | 28211160 |
11 | 14a1950a |
12 | 9545aa0 |
13 | 5ac99c3 |
14 | 3a6506c |
15 | 2723ce0 |
hex | 1ae77d8 |
28211160 has 64 divisors (see below), whose sum is σ = 89618400. Its totient is φ = 7079936.
The previous prime is 28211159. The next prime is 28211167. The reversal of 28211160 is 6111282.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28211167) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4875 + ... + 8954.
Almost surely, 228211160 is an apocalyptic number.
28211160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28211160 is an abundant number, since it is smaller than the sum of its proper divisors (61407240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28211160 is a wasteful number, since it uses less digits than its factorization.
28211160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13860 (or 13856 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 21.
The square root of 28211160 is about 5311.4178897918. The cubic root of 28211160 is about 304.4203269217.
The spelling of 28211160 in words is "twenty-eight million, two hundred eleven thousand, one hundred sixty".
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