Base | Representation |
---|---|
bin | 100111010011111101000 |
3 | 2102110000221 |
4 | 10322133220 |
5 | 312210133 |
6 | 43335424 |
7 | 13643410 |
oct | 4723750 |
9 | 2373027 |
10 | 1288168 |
11 | 7aa902 |
12 | 521574 |
13 | 36143b |
14 | 257640 |
15 | 1a6a2d |
hex | 13a7e8 |
1288168 has 16 divisors (see below), whose sum is σ = 2760480. Its totient is φ = 552048.
The previous prime is 1288163. The next prime is 1288169. The reversal of 1288168 is 8618821.
It is not an unprimeable number, because it can be changed into a prime (1288163) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11446 + ... + 11557.
It is an arithmetic number, because the mean of its divisors is an integer number (172530).
21288168 is an apocalyptic number.
It is an amenable number.
1288168 is an abundant number, since it is smaller than the sum of its proper divisors (1472312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1288168 is a wasteful number, since it uses less digits than its factorization.
1288168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23016 (or 23012 counting only the distinct ones).
The product of its digits is 6144, while the sum is 34.
The square root of 1288168 is about 1134.9748895901. The cubic root of 1288168 is about 108.8071668434.
The spelling of 1288168 in words is "one million, two hundred eighty-eight thousand, one hundred sixty-eight".
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