Base | Representation |
---|---|
bin | 110101101001… |
… | …0101111011000 |
3 | 1221220221211221 |
4 | 1223102233120 |
5 | 24200014133 |
6 | 2442501424 |
7 | 461032330 |
oct | 153225730 |
9 | 57827757 |
10 | 28126168 |
11 | 14970674 |
12 | 9504874 |
13 | 5a9a105 |
14 | 3a420c0 |
15 | 2708a2d |
hex | 1ad2bd8 |
28126168 has 32 divisors (see below), whose sum is σ = 60464160. Its totient is φ = 12015360.
The previous prime is 28126159. The next prime is 28126181. The reversal of 28126168 is 86162182.
It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22980 + ... + 24172.
It is an arithmetic number, because the mean of its divisors is an integer number (1889505).
Almost surely, 228126168 is an apocalyptic number.
28126168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
28126168 is an abundant number, since it is smaller than the sum of its proper divisors (32337992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28126168 is a wasteful number, since it uses less digits than its factorization.
28126168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1627 (or 1623 counting only the distinct ones).
The product of its digits is 9216, while the sum is 34.
The square root of 28126168 is about 5303.4109778519. The cubic root of 28126168 is about 304.1143095052.
The spelling of 28126168 in words is "twenty-eight million, one hundred twenty-six thousand, one hundred sixty-eight".
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