Base | Representation |
---|---|
bin | 110110011000… |
… | …0111100111100 |
3 | 1222122120012020 |
4 | 1230300330330 |
5 | 24244341220 |
6 | 2455040140 |
7 | 464230353 |
oct | 154607474 |
9 | 58576166 |
10 | 28512060 |
11 | 15104595 |
12 | 9670050 |
13 | 5ba3955 |
14 | 3b0299a |
15 | 2783040 |
hex | 1b30f3c |
28512060 has 48 divisors (see below), whose sum is σ = 84532896. Its totient is φ = 7155712.
The previous prime is 28512049. The next prime is 28512067. The reversal of 28512060 is 6021582.
It is a self number, because there is not a number n which added to its sum of digits gives 28512060.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28512067) 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, 12957 + ... + 14996.
It is an arithmetic number, because the mean of its divisors is an integer number (1761102).
Almost surely, 228512060 is an apocalyptic number.
28512060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28512060 is an abundant number, since it is smaller than the sum of its proper divisors (56020836).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28512060 is a wasteful number, since it uses less digits than its factorization.
28512060 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27982 (or 27980 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 24.
The square root of 28512060 is about 5339.6685290381. The cubic root of 28512060 is about 305.4988164742.
The spelling of 28512060 in words is "twenty-eight million, five hundred twelve thousand, sixty".
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