Base | Representation |
---|---|
bin | 1111010000101… |
… | …11111011110100 |
3 | 22220220022100001 |
4 | 13220113323310 |
5 | 230233234213 |
6 | 20412001044 |
7 | 3113121466 |
oct | 750277364 |
9 | 286808301 |
10 | 128024308 |
11 | 662a2615 |
12 | 36a60184 |
13 | 206a6439 |
14 | 13008136 |
15 | b38d1dd |
hex | 7a17ef4 |
128024308 has 12 divisors (see below), whose sum is σ = 225678852. Its totient is φ = 63544640.
The previous prime is 128024269. The next prime is 128024321. The reversal of 128024308 is 803420821.
It can be written as a sum of positive squares in 2 ways, for example, as 31945104 + 96079204 = 5652^2 + 9802^2 .
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, 116263 + ... + 117358.
It is an arithmetic number, because the mean of its divisors is an integer number (18806571).
Almost surely, 2128024308 is an apocalyptic number.
It is an amenable number.
128024308 is a deficient number, since it is larger than the sum of its proper divisors (97654544).
128024308 is a wasteful number, since it uses less digits than its factorization.
128024308 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 233762 (or 233760 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 28.
The square root of 128024308 is about 11314.7827199642. The cubic root of 128024308 is about 504.0003201896. Note that the first 3 decimals are identical.
The spelling of 128024308 in words is "one hundred twenty-eight million, twenty-four thousand, three hundred eight".
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