Base | Representation |
---|---|
bin | 1111010110110… |
… | …10111100011100 |
3 | 22222101220000202 |
4 | 13223122330130 |
5 | 230434314233 |
6 | 20441043032 |
7 | 3122656313 |
oct | 753327434 |
9 | 288356022 |
10 | 128823068 |
11 | 66798750 |
12 | 37186478 |
13 | 208c5b8a |
14 | 1317527a |
15 | b499be8 |
hex | 7adaf1c |
128823068 has 12 divisors (see below), whose sum is σ = 245935032. Its totient is φ = 58555920.
The previous prime is 128823047. The next prime is 128823091. The reversal of 128823068 is 860328821.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463855 + ... + 1463942.
It is an arithmetic number, because the mean of its divisors is an integer number (20494586).
Almost surely, 2128823068 is an apocalyptic number.
It is an amenable number.
128823068 is a deficient number, since it is larger than the sum of its proper divisors (117111964).
128823068 is a wasteful number, since it uses less digits than its factorization.
128823068 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2927812 (or 2927810 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 38.
The square root of 128823068 is about 11350.0250219989. The cubic root of 128823068 is about 505.0463219281.
The spelling of 128823068 in words is "one hundred twenty-eight million, eight hundred twenty-three thousand, sixty-eight".
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