Base | Representation |
---|---|
bin | 1111010110010… |
… | …00110001000000 |
3 | 22222021002212222 |
4 | 13223020301000 |
5 | 230424423413 |
6 | 20435310212 |
7 | 3122226242 |
oct | 753106100 |
9 | 288232788 |
10 | 128748608 |
11 | 6674780a |
12 | 3714b368 |
13 | 2089b011 |
14 | 13156092 |
15 | b482b08 |
hex | 7ac8c40 |
128748608 has 14 divisors (see below), whose sum is σ = 255485646. Its totient is φ = 64374272.
The previous prime is 128748601. The next prime is 128748619. The reversal of 128748608 is 806847821.
It can be written as a sum of positive squares in only one way, i.e., 110838784 + 17909824 = 10528^2 + 4232^2 .
It is not an unprimeable number, because it can be changed into a prime (128748601) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005785 + ... + 1005912.
Almost surely, 2128748608 is an apocalyptic number.
It is an amenable number.
128748608 is a deficient number, since it is larger than the sum of its proper divisors (126737038).
128748608 is an equidigital number, since it uses as much as digits as its factorization.
128748608 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2011709 (or 2011699 counting only the distinct ones).
The product of its (nonzero) digits is 172032, while the sum is 44.
The square root of 128748608 is about 11346.7443788956. The cubic root of 128748608 is about 504.9489972345.
The spelling of 128748608 in words is "one hundred twenty-eight million, seven hundred forty-eight thousand, six hundred eight".
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